Block proposal improvement tracker

tacker for various items to make block production more robust

- [ ] register fee recipients to all fallback bs for the VC
- [x] https://github.com/ChainSafe/lodestar/pull/5831
- [ ] for the multiple fallback bns, resolve with the most successful blinded block, similarly check for the bns
- the block production should be multiple bn aware rather than fallback urls handled in httpClient
- [x] https://github.com/ChainSafe/lodestar/pull/5880
- switch to produce block v3
- move the execution blinded race to the beacon
- [x] https://github.com/ChainSafe/lodestar/pull/6227
- allow execution block to send a blinded response for block production for low latency in publishing
- may be full body could be blinded than just the execution pa
- respond with a blocksource response for bn to know if the blinded produced block is bound to a bn or not
- [x] https://github.com/ChainSafe/lodestar/pull/6236
- [x] https://github.com/ChainSafe/lodestar/issues/5826