Log Message:
py-flake8: updated to 3.9.2

3.9.2 -- 2021-05-08
-------------------
You can view the `3.9.2 milestone`_ on GitHub for more details.

Bugs Fixed
- Fix error message for ``E111`` in ``pycodestyle`` (See also :pull:`1328`,
  :issue:`1327`).

Deprecations
- ``indent_size_str`` is deprecated, use ``str(indent_size)`` instead (See
  also :pull:`1328`, :issue:`1327`).