Log Message:
py-fakefs: updated to 5.6.0

Version 5.6.0

Adds preliminary Python 3.13 support.

Enhancements
* added preliminary support for Python 3.13 (tested with beta2)
* added `apply_umask` argument to `FakeFilesystem.create_dir` to allow ignoring \ 
the umask

Fixes
* use real open calls for remaining `pathlib` functions so that it works nice \ 
with skippedmodules

Infrastructure
* Add pyupgrade as a pre-commit hook.