Python3.12 compatibility

[afrendeiro]

Python3.12 removed _Flavour and _PosixFlavour from pathlib.

import pathlib

ImportError: cannot import name '_PosixFlavour' from 'pathlib'

[brandonschabell]

Python 3.12 support has been added in #14 . I will continue to add support for python 3.13 and 3.14 as well.