[3.12] Fix possible refleak in CodeType.replace() (GH-106243) (GH-106244)

Fix possible refleak in CodeType.replace() (GH-106243)

A reference to c_code was leaked if PySys_Audit() failed.
(cherry picked from commit 3c70d467c148875f2ce17bacab8909ecc3e9fc1d)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>