Bump urllib3 from 2.2.0 to 2.2.2 in /doc (#1097)

Bumps [urllib3](https://github.com/urllib3/urllib3) from 2.2.0 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@2.2.0...2.2.2)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

doc/requirements.txt

@@ -72,5 +72,5 @@ sphinxcontrib-qthelp==1.0.7
  # via sphinx
 sphinxcontrib-serializinghtml==1.1.10
  # via sphinx
-urllib3==2.2.0
+urllib3==2.2.2
  # via requests