Release v1.44.0-rc.3

Changelog Full Changelog Features prune PayloadEnvelopeInput when syncing ( #9509 ) ( @twoeths ) upgrade to v1.7.0-alpha.11 spec ( #9541 ) ( @nflaig ) add standard fast confirmation metrics ( #9552 ) ( @nflaig ) queue execution payload envelope until its block is imported ( #9520 ) ( @nflaig ) emit fast_confirmation SSE event per beacon-APIs ( #9439 ) ( @nazarhussain ) fast confirmation rule (…