Fix response casing for complaince with beacon-apis

[g11tech]

Motivation
Dhruv from Obol network wanted to operate the lodestar validator against infura beacon node (most likely prysm or lighthouse).
However the validator fails on casing conversion.

To make the casing of response complaint with the beacon-Apis spec.

[codecov]

Codecov Report

Merging #3980 (b8609ae) into master (eb8db44) will decrease coverage by 0.59%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #3980      +/-   ##
==========================================
- Coverage   37.07%   36.47%   -0.60%     
==========================================
  Files         325      325              
  Lines        9111     9310     +199     
  Branches     1468     1536      +68     
==========================================
+ Hits         3378     3396      +18     
- Misses       5542     5723     +181     
  Partials      191      191              

[github-actions]

Performance Report

✔️ no performance regression detected

Full benchmark results

Benchmark suite	Current: 7e28646	Previous: efdad3f	Ratio
BeaconState.hashTreeRoot - No change	523.00 ns/op	507.00 ns/op	1.03
BeaconState.hashTreeRoot - 1 full validator	73.073 us/op	54.724 us/op	1.34
BeaconState.hashTreeRoot - 32 full validator	714.79 us/op	539.29 us/op	1.33
BeaconState.hashTreeRoot - 512 full validator	8.0308 ms/op	6.0110 ms/op	1.34
BeaconState.hashTreeRoot - 1 validator.effectiveBalance	93.697 us/op	68.558 us/op	1.37
BeaconState.hashTreeRoot - 32 validator.effectiveBalance	1.3121 ms/op	947.83 us/op	1.38
BeaconState.hashTreeRoot - 512 validator.effectiveBalance	17.994 ms/op	13.117 ms/op	1.37
BeaconState.hashTreeRoot - 1 balances	68.995 us/op	52.702 us/op	1.31
BeaconState.hashTreeRoot - 32 balances	585.42 us/op	474.61 us/op	1.23
BeaconState.hashTreeRoot - 512 balances	5.8674 ms/op	4.5800 ms/op	1.28
BeaconState.hashTreeRoot - 250000 balances	123.46 ms/op	95.917 ms/op	1.29
processSlot - 1 slots	13.643 us/op	9.6560 us/op	1.41
processSlot - 32 slots	2.0971 ms/op	1.5634 ms/op	1.34
getCommitteeAssignments - req 1 vs - 250000 vc	5.7363 ms/op	5.2723 ms/op	1.09
getCommitteeAssignments - req 100 vs - 250000 vc	8.1236 ms/op	7.3524 ms/op	1.10
getCommitteeAssignments - req 1000 vs - 250000 vc	8.6663 ms/op	7.8458 ms/op	1.10
computeProposers - vc 250000	21.481 ms/op	16.367 ms/op	1.31
computeEpochShuffling - vc 250000	166.32 ms/op	160.26 ms/op	1.04
getNextSyncCommittee - vc 250000	354.01 ms/op	272.81 ms/op	1.30
altair processAttestation - 250000 vs - 7PWei normalcase	5.2982 ms/op	3.9881 ms/op	1.33
altair processAttestation - 250000 vs - 7PWei worstcase	7.4895 ms/op	5.8581 ms/op	1.28
altair processAttestation - setStatus - 1/6 committees join	233.50 us/op	196.37 us/op	1.19
altair processAttestation - setStatus - 1/3 committees join	437.91 us/op	374.77 us/op	1.17
altair processAttestation - setStatus - 1/2 committees join	608.75 us/op	526.42 us/op	1.16
altair processAttestation - setStatus - 2/3 committees join	796.87 us/op	674.30 us/op	1.18
altair processAttestation - setStatus - 4/5 committees join	1.1478 ms/op	938.32 us/op	1.22
altair processAttestation - setStatus - 100% committees join	1.3989 ms/op	1.1082 ms/op	1.26
altair processBlock - 250000 vs - 7PWei normalcase	32.505 ms/op	25.076 ms/op	1.30
altair processBlock - 250000 vs - 7PWei normalcase hashState	42.753 ms/op	35.518 ms/op	1.20
altair processBlock - 250000 vs - 7PWei worstcase	88.267 ms/op	72.913 ms/op	1.21
altair processBlock - 250000 vs - 7PWei worstcase hashState	132.54 ms/op	111.62 ms/op	1.19
altair processEth1Data - 250000 vs - 7PWei normalcase	1.0239 ms/op	793.51 us/op	1.29
altair processEpoch - mainnet_e81889	647.50 ms/op	579.90 ms/op	1.12
mainnet_e81889 - altair beforeProcessEpoch	167.01 ms/op	99.756 ms/op	1.67
mainnet_e81889 - altair processJustificationAndFinalization	70.174 us/op	24.056 us/op	2.92
mainnet_e81889 - altair processInactivityUpdates	13.528 ms/op	12.451 ms/op	1.09
mainnet_e81889 - altair processRewardsAndPenalties	96.489 ms/op	141.55 ms/op	0.68
mainnet_e81889 - altair processRegistryUpdates	18.336 us/op	3.6580 us/op	5.01
mainnet_e81889 - altair processSlashings	5.9220 us/op	1.1380 us/op	5.20
mainnet_e81889 - altair processEth1DataReset	6.1780 us/op	1.0460 us/op	5.91
mainnet_e81889 - altair processEffectiveBalanceUpdates	7.9975 ms/op	7.5597 ms/op	1.06
mainnet_e81889 - altair processSlashingsReset	20.857 us/op	4.7790 us/op	4.36
mainnet_e81889 - altair processRandaoMixesReset	26.551 us/op	6.6310 us/op	4.00
mainnet_e81889 - altair processHistoricalRootsUpdate	8.3460 us/op	1.4340 us/op	5.82
mainnet_e81889 - altair processParticipationFlagUpdates	14.710 us/op	3.2350 us/op	4.55
mainnet_e81889 - altair processSyncCommitteeUpdates	5.1660 us/op	933.00 ns/op	5.54
mainnet_e81889 - altair afterProcessEpoch	204.97 ms/op	183.68 ms/op	1.12
altair processInactivityUpdates - 250000 normalcase	54.873 ms/op	32.523 ms/op	1.69
altair processInactivityUpdates - 250000 worstcase	41.979 ms/op	27.676 ms/op	1.52
altair processRewardsAndPenalties - 250000 normalcase	125.67 ms/op	123.73 ms/op	1.02
altair processRewardsAndPenalties - 250000 worstcase	137.18 ms/op	78.862 ms/op	1.74
altair processSyncCommitteeUpdates - 250000	363.23 ms/op	284.98 ms/op	1.27
Tree 40 250000 create	1.0046 s/op	712.15 ms/op	1.41
Tree 40 250000 get(125000)	329.20 ns/op	282.29 ns/op	1.17
Tree 40 250000 set(125000)	3.5308 us/op	2.2319 us/op	1.58
Tree 40 250000 toArray()	38.345 ms/op	32.987 ms/op	1.16
Tree 40 250000 iterate all - toArray() + loop	36.917 ms/op	33.181 ms/op	1.11
Tree 40 250000 iterate all - get(i)	133.78 ms/op	110.10 ms/op	1.22
MutableVector 250000 create	17.335 ms/op	15.175 ms/op	1.14
MutableVector 250000 get(125000)	14.661 ns/op	14.757 ns/op	0.99
MutableVector 250000 set(125000)	935.79 ns/op	587.98 ns/op	1.59
MutableVector 250000 toArray()	7.4595 ms/op	6.6816 ms/op	1.12
MutableVector 250000 iterate all - toArray() + loop	7.5496 ms/op	7.0611 ms/op	1.07
MutableVector 250000 iterate all - get(i)	3.7326 ms/op	3.2826 ms/op	1.14
Array 250000 create	7.1762 ms/op	6.1593 ms/op	1.17
Array 250000 clone - spread	3.8391 ms/op	2.6268 ms/op	1.46
Array 250000 get(125000)	1.9440 ns/op	1.1780 ns/op	1.65
Array 250000 set(125000)	2.0170 ns/op	1.2080 ns/op	1.67
Array 250000 iterate all - loop	147.11 us/op	167.83 us/op	0.88
effectiveBalanceIncrements clone Uint8Array 300000	119.32 us/op	85.174 us/op	1.40
effectiveBalanceIncrements clone MutableVector 300000	1.3730 us/op	776.00 ns/op	1.77
effectiveBalanceIncrements rw all Uint8Array 300000	200.59 us/op	301.86 us/op	0.66
effectiveBalanceIncrements rw all MutableVector 300000	306.54 ms/op	192.09 ms/op	1.60
aggregationBits - 2048 els - zipIndexesInBitList	42.450 us/op	31.718 us/op	1.34
regular array get 100000 times	59.649 us/op	67.400 us/op	0.89
wrappedArray get 100000 times	59.481 us/op	67.416 us/op	0.88
arrayWithProxy get 100000 times	35.480 ms/op	29.947 ms/op	1.18
ssz.Root.equals	556.00 ns/op	460.00 ns/op	1.21
byteArrayEquals	537.00 ns/op	450.00 ns/op	1.19
phase0 processBlock - 250000 vs - 7PWei normalcase	4.6945 ms/op	3.5731 ms/op	1.31
phase0 processBlock - 250000 vs - 7PWei worstcase	57.276 ms/op	46.888 ms/op	1.22
phase0 afterProcessEpoch - 250000 vs - 7PWei	203.20 ms/op	199.54 ms/op	1.02
phase0 beforeProcessEpoch - 250000 vs - 7PWei	84.116 ms/op	76.630 ms/op	1.10
phase0 processEpoch - mainnet_e58758	691.70 ms/op	533.78 ms/op	1.30
mainnet_e58758 - phase0 beforeProcessEpoch	299.59 ms/op	263.23 ms/op	1.14
mainnet_e58758 - phase0 processJustificationAndFinalization	71.011 us/op	23.771 us/op	2.99
mainnet_e58758 - phase0 processRewardsAndPenalties	161.40 ms/op	80.194 ms/op	2.01
mainnet_e58758 - phase0 processRegistryUpdates	33.812 us/op	10.341 us/op	3.27
mainnet_e58758 - phase0 processSlashings	6.0990 us/op	1.2920 us/op	4.72
mainnet_e58758 - phase0 processEth1DataReset	5.8490 us/op	974.00 ns/op	6.01
mainnet_e58758 - phase0 processEffectiveBalanceUpdates	7.4761 ms/op	5.5904 ms/op	1.34
mainnet_e58758 - phase0 processSlashingsReset	21.181 us/op	5.4380 us/op	3.89
mainnet_e58758 - phase0 processRandaoMixesReset	25.142 us/op	6.2790 us/op	4.00
mainnet_e58758 - phase0 processHistoricalRootsUpdate	7.5810 us/op	1.2030 us/op	6.30
mainnet_e58758 - phase0 processParticipationRecordUpdates	22.638 us/op	5.2050 us/op	4.35
mainnet_e58758 - phase0 afterProcessEpoch	157.65 ms/op	176.58 ms/op	0.89
phase0 processEffectiveBalanceUpdates - 250000 normalcase	7.2781 ms/op	6.3990 ms/op	1.14
phase0 processEffectiveBalanceUpdates - 250000 worstcase 0.5	7.5381 ms/op	6.8927 ms/op	1.09
phase0 processRegistryUpdates - 250000 normalcase	29.921 us/op	9.5890 us/op	3.12
phase0 processRegistryUpdates - 250000 badcase_full_deposits	502.28 us/op	419.35 us/op	1.20
phase0 processRegistryUpdates - 250000 worstcase 0.5	259.52 ms/op	215.80 ms/op	1.20
phase0 getAttestationDeltas - 250000 normalcase	18.118 ms/op	15.107 ms/op	1.20
phase0 getAttestationDeltas - 250000 worstcase	17.722 ms/op	15.336 ms/op	1.16
phase0 processSlashings - 250000 worstcase	7.0822 ms/op	5.4529 ms/op	1.30
shuffle list - 16384 els	11.255 ms/op	10.686 ms/op	1.05
shuffle list - 250000 els	159.15 ms/op	154.33 ms/op	1.03
getEffectiveBalanceIncrementsZeroInactive - 250000 vs - 7PWei	462.79 us/op	361.78 us/op	1.28
pass gossip attestations to forkchoice per slot	7.6233 ms/op	3.4401 ms/op	2.22
computeDeltas	4.1800 ms/op	4.1471 ms/op	1.01
computeProposerBoostScoreFromBalances	487.05 us/op	503.04 us/op	0.97
getPubkeys - index2pubkey - req 1000 vs - 250000 vc	2.7584 ms/op	2.0581 ms/op	1.34
getPubkeys - validatorsArr - req 1000 vs - 250000 vc	93.264 us/op	80.806 us/op	1.15
BLS verify - blst-native	2.2537 ms/op	1.8571 ms/op	1.21
BLS verifyMultipleSignatures 3 - blst-native	4.6476 ms/op	3.8054 ms/op	1.22
BLS verifyMultipleSignatures 8 - blst-native	10.026 ms/op	8.2046 ms/op	1.22
BLS verifyMultipleSignatures 32 - blst-native	37.522 ms/op	29.733 ms/op	1.26
BLS aggregatePubkeys 32 - blst-native	48.237 us/op	39.642 us/op	1.22
BLS aggregatePubkeys 128 - blst-native	189.88 us/op	153.94 us/op	1.23
getAttestationsForBlock	74.630 ms/op	63.282 ms/op	1.18
CheckpointStateCache - add get delete	13.669 us/op	11.207 us/op	1.22
validate gossip signedAggregateAndProof - struct	5.2499 ms/op	4.2661 ms/op	1.23
validate gossip attestation - struct	2.5679 ms/op	2.0285 ms/op	1.27
pickEth1Vote - no votes	2.6465 ms/op	2.1919 ms/op	1.21
pickEth1Vote - max votes	25.350 ms/op	20.313 ms/op	1.25
pickEth1Vote - Eth1Data hashTreeRoot value x2048	14.444 ms/op	11.207 ms/op	1.29
pickEth1Vote - Eth1Data hashTreeRoot tree x2048	28.215 ms/op	21.397 ms/op	1.32
pickEth1Vote - Eth1Data fastSerialize value x2048	1.9951 ms/op	1.6139 ms/op	1.24
pickEth1Vote - Eth1Data fastSerialize tree x2048	17.415 ms/op	13.309 ms/op	1.31
bytes32 toHexString	1.2510 us/op	993.00 ns/op	1.26
bytes32 Buffer.toString(hex)	812.00 ns/op	669.00 ns/op	1.21
bytes32 Buffer.toString(hex) from Uint8Array	1.1150 us/op	915.00 ns/op	1.22
bytes32 Buffer.toString(hex) + 0x	815.00 ns/op	679.00 ns/op	1.20
Object access 1 prop	0.41200 ns/op	0.34400 ns/op	1.20
Map access 1 prop	0.34800 ns/op	0.29300 ns/op	1.19
Object get x1000	17.846 ns/op	18.249 ns/op	0.98
Map get x1000	0.98200 ns/op	1.0870 ns/op	0.90
Object set x1000	121.00 ns/op	110.82 ns/op	1.09
Map set x1000	81.854 ns/op	66.844 ns/op	1.22
Return object 10000 times	0.43910 ns/op	0.36820 ns/op	1.19
Throw Error 10000 times	7.2585 us/op	5.8561 us/op	1.24
enrSubnets - fastDeserialize 64 bits	3.2900 us/op	2.7370 us/op	1.20
enrSubnets - ssz BitVector 64 bits	904.00 ns/op	781.00 ns/op	1.16
enrSubnets - fastDeserialize 4 bits	493.00 ns/op	396.00 ns/op	1.24
enrSubnets - ssz BitVector 4 bits	898.00 ns/op	782.00 ns/op	1.15
prioritizePeers score -10:0 att 32-0.1 sync 2-0	119.08 us/op	91.985 us/op	1.29
prioritizePeers score 0:0 att 32-0.25 sync 2-0.25	157.84 us/op	125.09 us/op	1.26
prioritizePeers score 0:0 att 32-0.5 sync 2-0.5	276.47 us/op	206.48 us/op	1.34
prioritizePeers score 0:0 att 64-0.75 sync 4-0.75	610.16 us/op	437.52 us/op	1.39
prioritizePeers score 0:0 att 64-1 sync 4-1	572.63 us/op	459.84 us/op	1.25
RateTracker 1000000 limit, 1 obj count per request	199.35 ns/op	181.33 ns/op	1.10
RateTracker 1000000 limit, 2 obj count per request	149.11 ns/op	137.02 ns/op	1.09
RateTracker 1000000 limit, 4 obj count per request	126.05 ns/op	113.99 ns/op	1.11
RateTracker 1000000 limit, 8 obj count per request	113.96 ns/op	103.13 ns/op	1.10
RateTracker with prune	5.4790 us/op	4.3790 us/op	1.25
array of 16000 items push then shift	5.2877 us/op	3.0935 us/op	1.71
LinkedList of 16000 items push then shift	20.725 ns/op	18.333 ns/op	1.13
array of 16000 items push then pop	248.77 ns/op	211.93 ns/op	1.17
LinkedList of 16000 items push then pop	20.790 ns/op	17.243 ns/op	1.21
array of 24000 items push then shift	7.9655 us/op	4.5401 us/op	1.75
LinkedList of 24000 items push then shift	20.718 ns/op	23.279 ns/op	0.89
array of 24000 items push then pop	267.48 ns/op	209.59 ns/op	1.28
LinkedList of 24000 items push then pop	19.433 ns/op	19.885 ns/op	0.98

by benchmarkbot/action