Update coverage to 6.3.3

[pyup-bot]

This PR updates coverage from 6.3.2 to 6.3.3.

Changelog

6.3.3

--------------------------

- Fix: Coverage.py now builds successfully on CPython 3.11 (3.11.0b1) again.
Closes `issue 1367`_.  Some results for generators may have changed.

.. _issue 1367: https://github.com/nedbat/coveragepy/issues/1367


.. _changes_632:

Links

• PyPI: https://pypi.org/project/coverage
• Changelog: https://pyup.io/changelogs/coverage/
• Repo: https://github.com/nedbat/coveragepy

[pyup-bot]

Closing this in favor of #256