glib incompatible with Python 3.12 due to distutils usage

This line

https://gitlab.gnome.org/GNOME/glib/-/blame/main/gio/gdbus-2.0/codegen/utils.py#L22

import distutils.version

breaks compatibility with Python 3.12. See https://peps.python.org/pep-0632/#migration-advice

Notice that distutils is sometimes shipped with setuptools, but please don't believe popular belief that installing setuptools is sufficient to make import distutils work. setuptools has some ugly hacks that magically make import distutils work, provided that setuptools is installed as a system site-package. That's not an assumption you can make. So best to drop the dependency on distutils altogether.