Update watchdog to 2.1.7

[pyup-bot]

This PR updates watchdog from 2.1.6 to 2.1.7.

Changelog

2.1.7

~~~~~

2022-03-25 • `full history <https://github.com/gorakhargosh/watchdog/compare/v2.1.6...v2.1.7>`__

- Eliminate timeout in waiting on event queue. (`861 <https://github.com/gorakhargosh/watchdog/pull/861>`_)
- [inotify] Fix ``not`` equality implementation for ``InotifyEvent``. (`848 <https://github.com/gorakhargosh/watchdog/pull/848>`_)
- [watchmedo] Fix calling commands from within a Python script. (`879 <https://github.com/gorakhargosh/watchdog/pull/879>`_)
- [watchmedo] ``PyYAML`` is loaded only when strictly necessary. Simple usages of ``watchmedo`` are possible without the module being installed. (`847 <https://github.com/gorakhargosh/watchdog/pull/847>`_)
- Thanks to our beloved contributors: sattlerc, JanzenLiu, BoboTiG

Links

• PyPI: https://pypi.org/project/watchdog
• Changelog: https://pyup.io/changelogs/watchdog/
• Repo: https://github.com/gorakhargosh/watchdog
• Docs: https://pythonhosted.org/watchdog/

[pyup-bot]

Closing this in favor of #255