[3.13] gh-126018: Avoid aborting due to unnecessary assert in `sys.audit` (GH-126020) (#126042)

(cherry picked from commit 80eec52fc813bc7d20478da3114ec6ffd73e7c31)

Co-authored-by: devdanzin <74280297+devdanzin@users.noreply.github.com>
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>