Change pathfix.py to %py3_shebang_fix
Python 3.12 has removed the pathfix.py script. That functionality is in the macro %py3_shebang_fix which should work on recent RHEL as well as Fedora. This change is needed as the call to pathfix.py currently fails the build.
Signed-off-by: Justin M. Forbes jforbes@fedoraproject.org