fix: off-by-1 in getBlockHashMembershipWitness archive snapshot (backport #21648)#21663

benesjan merged 2 commits intobackport-to-v4-stagingAztecProtocol/aztec-packages:backport-to-v4-stagingfrom

claudebox/backport-21648-to-v4AztecProtocol/aztec-packages:claudebox/backport-21648-to-v4Copy head branch name to clipboard