Update setuptools to 54.1.1

[pyup-bot]

This PR updates setuptools from 54.1.0 to 54.1.1.

Changelog

54.1.1

-------


Documentation changes
^^^^^^^^^^^^^^^^^^^^^
* 2584: Added ``sphinx-inline-tabs`` extension to allow for comparison of ``setup.py`` and its equivalent ``setup.cfg`` -- by :user:`amy-lei`

Misc
^^^^
* 2592: Made option keys in the ``[metadata]`` section of ``setup.cfg`` case-sensitive. Users having
uppercase option spellings will get a warning suggesting to make them to lowercase
-- by :user:`melissa-kun-li`

Links

• PyPI: https://pypi.org/project/setuptools
• Changelog: https://pyup.io/changelogs/setuptools/
• Repo: https://github.com/pypa/setuptools

[duckinator]

bors r+

[bors]

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