Allow zero-value payloads.

[mcdee]

📝 Summary

Allow payloads with transactions to propagate to relays, even if the payload value is 0.

Fixes #242

💡 Motivation and Context

If a payload contains transactions then it should be propagated, even if its value is 0. Although this may not seem like a particularly useful result, it is still a valid one and sending it to the relay provides useful information and allows for special-case processing of the payload.

✅ I have completed the following steps:

• Run make lint
  • seeing error error: failed to run custom build command for reth-mdbx-sys v1.0.6 (https://github.com/paradigmxyz/reth?tag=v1.0.6#c228fe15)
• Run make test
  • seeing error error: failed to run custom build command for reth-mdbx-sys v1.0.6 (https://github.com/paradigmxyz/reth?tag=v1.0.6#c228fe15)
• Added tests (if applicable)
  • There do not appear to be tests for this part of the codebase

[github-actions]

Benchmark results for 50a486a

Report: https://flashbots-rbuilder-ci-stats.s3.us-east-2.amazonaws.com/benchmark/50a486a-70579d1/report/index.html

Date (UTC)	2024-11-14T16:59:23+00:00
Commit	50a486aa9def8fe8bd55e636f745e4d938838e4b
Base SHA	70579d128cda94081f1335e3cd3499ff94a7899a

Significant changes

Benchmark	Mean	Status
MEV-Boost SubmitBlock serialization/JSON encoding	-15.58%	Performance has improved.