Update packaging to 21.3

[pyup-bot]

This PR updates packaging from 21.0 to 21.3.

Changelog

21.3

~~~~~~~~~~~~~~~~~

* Add a ``pp3-none-any`` tag (:issue:`311`)
* Replace the blank pyparsing 3 exclusion with a 3.0.5 exclusion (:issue:`481`, :issue:`486`)
* Fix a spelling mistake (:issue:`479`)

21.2

~~~~~~~~~~~~~~~~~

* Update documentation entry for 21.1.

21.1

~~~~~~~~~~~~~~~~~

* Update pin to pyparsing to exclude 3.0.0.

Links

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

[pyup-bot]

Closing this in favor of #87