Release v1.12.1-rc.3

Changelog

Full Changelog

Features

• more insight when publishing blocks (#6166) (@tuyennhv)
• allow configuring broadcast validation on validator for proposals (#6151) (@g11tech)
• implement consensus broadcastValidation and set it to default (#6149) (@g11tech)

Bug Fixes

• add log for blockroot being signed for debugging proposal failures (#6147) (@g11tech)
• logtrace produced cache population for blinded block assembly (#6131) (@g11tech)