Bump pytz from 2022.1 to 2022.2.1

Bumps [pytz](https://github.com/stub42/pytz) from 2022.1 to 2022.2.1.
- [Release notes](https://github.com/stub42/pytz/releases)
- [Commits](stub42/pytz@release_2022.1...release_2022.2.1)

---
updated-dependencies:
- dependency-name: pytz
  dependency-type: indirect
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

docs-requirements.txt

@@ -36,7 +36,7 @@ pygments==2.12.0
     # via sphinx
 pyparsing==3.0.9
     # via packaging
-pytz==2022.1
+pytz==2022.2.1
     # via babel
 requests==2.28.1
     # via sphinx