Log Message:
py-flask: updated to 3.0.1

Version 3.0.1

- Correct type for ``path`` argument to ``send_file``.
- Fix a typo in an error message for the ``flask run --key`` option.
- Session data is untagged without relying on the built-in ``json.loads``
  ``object_hook``. This allows other JSON providers that don't implement that.
- Address more type findings when using mypy strict mode.