Fix incorrect field name in Deneb BuilderBid type

[jimmygchen]

I've just noticed that the field names in the BuilderBid schema doesn't match the SignedBuilderBid example JSON:

builder-specs/examples/deneb/signed_builder_bid.json

Lines 24 to 28 in 0d039df

	"blinded_blobs_bundle": {
	"blob_roots": ["0x24564723180fcb3d994104538d351c8dcbde12d541676bb736cf678018ca4739"],
	"commitments": ["0x8dab030c51e16e84be9caab84ee3d0b8bbec1db4a0e4de76439da8424d9b957370a10a78851f97e4b54d2ce1ab0d686f"],
	"proofs": ["0xb4021b0de10f743893d4f71e1bf830c019e832958efd6795baf2f83b8699a9eccc5dc99015d8d4d8ec370d0cc333c06a"]
	},

• I've updated the field name to blinded_blobs_bundle to match the example. (I think this name also reflects the structure better)
• Fixed the ordering of the fields in the example to match the schema, i.e. blob_roots comes last in blinded_blobs_bundle

[ralexstokes]

excellent, thank you!