Update tox to 3.24.4

[pyup-bot]

This PR updates tox from 3.24.1 to 3.24.4.

Changelog

3.24.4

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

Bugfixes
^^^^^^^^

- Fixed handling of ``-e ALL`` in parallel mode by ignoring the ``ALL`` in subprocesses -- by :user:`guahki`.
`2167 <https://github.com/tox-dev/tox/issues/2167>`_
- Prevent tox from using a truncated interpreter when using
``TOX_LIMITED_SHEBANG`` -- by :user:`jdknight`.
`2208 <https://github.com/tox-dev/tox/issues/2208>`_


Documentation
^^^^^^^^^^^^^

- Enabled the use of the favicon in the Sphinx docs first
introduced in :pull:`764` but not integrated fully
-- :user:`webknjaz`
`2177 <https://github.com/tox-dev/tox/issues/2177>`_

3.24.3

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

Bugfixes
^^^^^^^^

- ``--parallel`` reports now show ASCII OK/FAIL/SKIP lines when full Unicode output is not available - by :user:`brettcs`
`1421 <https://github.com/tox-dev/tox/issues/1421>`_


Miscellaneous
^^^^^^^^^^^^^

- Started enforcing valid references in Sphinx docs -- :user:`webknjaz`
`2168 <https://github.com/tox-dev/tox/issues/2168>`_

3.24.2

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

Bugfixes
^^^^^^^^

- include ``LC_ALL`` to implicit list of passenv variables - by :user:`ssbarnea`
`2162 <https://github.com/tox-dev/tox/issues/2162>`_

Links

• PyPI: https://pypi.org/project/tox
• Changelog: https://pyup.io/changelogs/tox/
• Docs: http://tox.readthedocs.org

[pyup-bot]

Closing this in favor of #322