looks like the 3.13 extension is still built with 3.12:
$ fgrep -r 3.12 debian/build/bindings/*3.13 | wc -l
grep: debian/build/bindings/python3.3.13/python3/.libs/auparse.so:
binary file matches
grep: debian/build/bindings/python3.3.13/python3/.libs/auparse.soT:
binary file matches
31
the build produces an artifact _audit.so. that should be renamed in the
same target to a versioned one. You can get the extension suffix with
$ python3.13-config --extension-suffix
.cpython-313-x86_64-linux-gnu.so
that is now blocking the Python 3.13 addition, libsemanage, libselinux,
and so on.