Update deprecated autoflake hook

As stated in https://github.com/humitos/mirrors-autoflake/blob/master/README.md, DO NOT USE THIS REPOSITORY. There is an official version now at https://github.com/PyCQA/autoflake/blob/master/.pre-commit-hooks.yaml.

There are some errors when using this deprecated hook under Python 3.12, such as

Traceback (most recent call last):
  File "/home/fanta/.cache/pre-commit/repoo2mq6vmn/py_env-python3.12/bin/autoflake", line 5, in <module>
    from autoflake import main
  File "/home/fanta/.cache/pre-commit/repoo2mq6vmn/py_env-python3.12/lib/python3.12/site-packages/autoflake.py", line 32, in <module>
    import distutils.sysconfig
ModuleNotFoundError: No module named 'distutils'

What is the problem that this PR addresses?

...

How did you solve it?

...

Checklist

[x] I have read the Contributor's Guide.
[x] I will check that all automated PR checks pass before the PR gets reviewed.

tmbo / questionary

Update deprecated autoflake hook #386