op-service/txmgr : add tx manager metrics

[shrimalmadhur]

• 1/n PR for op-service/txmgr: Transaction Manager Metrics #5291

• Adding metrics for transaction manager

• Embed and initialize from op-proposer and op-batcher

• Add L1 Gas fee metrics

• Test L1 gas metrics using devnet

 HELP op_proposer_default_txmgr_tx_fee L1 gas fee for a transaction in GWEI
# TYPE op_proposer_default_txmgr_tx_fee gauge
op_proposer_default_txmgr_tx_fee 89488

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Metadata

• Fixes #[Link to Issue]

TODOs

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Latest commit: 6b28769

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[trianglesphere]

Will conflict with #5286, but nothing major.

[codecov]

Codecov Report

Merging #5295 (6b28769) into develop (fcff9ae) will decrease coverage by 0.02%.
The diff coverage is 18.18%.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #5295      +/-   ##
===========================================
- Coverage    39.88%   39.87%   -0.02%     
===========================================
  Files          382      384       +2     
  Lines        24390    24406      +16     
  Branches       838      838              
===========================================
+ Hits          9729     9732       +3     
- Misses       13930    13943      +13     
  Partials       731      731              

Flag	Coverage Δ
bedrock-go-tests	36.14% <18.18%> (-0.02%)	⬇️
common-ts-tests	26.82% <ø> (ø)
contracts-bedrock-tests	51.32% <ø> (ø)
contracts-tests	98.86% <ø> (ø)
core-utils-tests	60.41% <ø> (ø)
dtl-tests	47.15% <ø> (ø)
fault-detector-tests	33.88% <ø> (ø)
sdk-tests	38.86% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
op-batcher/batcher/driver.go	0.00% <0.00%> (ø)
op-batcher/metrics/metrics.go	0.00% <0.00%> (ø)
op-batcher/metrics/noop.go	46.15% <ø> (ø)
op-proposer/metrics/metrics.go	0.00% <0.00%> (ø)
op-proposer/metrics/noop.go	0.00% <ø> (ø)
op-proposer/proposer/l2_output_submitter.go	2.77% <0.00%> (ø)
op-service/txmgr/metrics/tx_metrics.go	0.00% <0.00%> (ø)
op-service/txmgr/metrics/noop.go	100.00% <100.00%> (ø)
op-service/txmgr/txmgr.go	79.09% <100.00%> (+0.14%)	⬆️

[sebastianst]

Looks good! Just a minor comment about embedding the NoopTxMetrics

[mergify]

Hey @shrimalmadhur! This PR has merge conflicts. Please fix them before continuing review.

[trianglesphere]

lgtm

requested changes were implemented

[mergify]

This PR has been added to the merge queue, and will be merged soon.

[mergify]

This PR is next in line to be merged, and will be merged as soon as checks pass.

[mergify]

This PR is next in line to be merged, and will be merged as soon as checks pass.