feat: update both optimistic submission methods to use adjustment data v3

[yeguclu]

📝 Summary

Unify optimistic v1 and v3 submissions to use BidAdjustmentDataV3 format, removing BidAdjustmentDataV1 and intermediate conversion methods.

💡 Motivation and Context

For payout transactions, gas_used may differ from gas_limit. BidAdjustmentDataV3(https://docs.ultrasound.money/builders/optimistic-v3) format relaxes the gas_limit == gas_used assumption by explicitly providing placeholder_gas_used, allowing the relay to use the actual gas consumed.

In addition to optimistic v3 submissions, there already is a support for using the BidAdjustmentDataV3 with optimistic v1 submissions. Currently in rbuilder codebase, v1 submissions used BidAdjustmentDataV1 while v3 submissions used BidAdjustmentDataV2. Changing those submission types to use v3 data allows relays to use the actual gas consumed, preventing adjustment failures when gas_used differs from gas_limit, and will increase builder adjustment revenues.

Therefore we can simplify the codebase by:

• Removing BidAdjustmentDataV1 entirely
• Removing the intermediate BidAdjustmentData struct and conversion methods
• Using BidAdjustmentDataV3 directly for both optimistic submission methods

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✅ I have completed the following steps:

• [✅ ] Run make lint
• [✅ ] Run make test
• Added tests (if applicable)