Bump urllib3 from 2.2.1 to 2.2.2 in /docs/sphinx

Bumps [urllib3](https://github.com/urllib3/urllib3) from 2.2.1 to 2.2.2.
- [Release notes](https://github.com/urllib3/urllib3/releases)
- [Changelog](https://github.com/urllib3/urllib3/blob/main/CHANGES.rst)
- [Commits](urllib3/urllib3@2.2.1...2.2.2)

---
updated-dependencies:
- dependency-name: urllib3
  dependency-type: indirect
...

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

docs/sphinx/requirements.txt

@@ -139,7 +139,7 @@ typing-extensions==4.11.0
     # via
     #   pydata-sphinx-theme
     #   pygithub
-urllib3==2.2.1
+urllib3==2.2.2
     # via
     #   pygithub
     #   requests