[consensus rule] limit sigchecks in a block after phonon upgrade

Summary: Depends on D5127 D5029 D5220

Test Plan:

ninja check-extended
ninja check-upgrade-activated-extended

Rerun ninja check-all with cmake .. -DBUILD_BITCOIN_WALLET=OFF.

Reviewers: #bitcoin_abc, deadalnix

Reviewed By: #bitcoin_abc, deadalnix

Subscribers: jasonbcox, deadalnix

Maniphest Tasks: T704

Differential Revision: https://reviews.bitcoinabc.org/D5179