Update standardness rules congruent to Bitcoin Core#2178

Merged

Roasbeef merged 2 commits intobtcsuite:masterfrom

ProofOfKeags:standardness-cleanup

May 21, 2024

Commits on May 21, 2024

txscript: make OP_CODESEPARATOR non-standard in non-segwit scripts
ProofOfKeags
committed
mempool: make txn's below 65 non-witness bytes non-standard
ProofOfKeags
committed