Bump urllib3 from 2.2.1 to 2.2.2 in /images/hub

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] <[email protected]>

Author: dependabot[bot]

images/hub/requirements.txt

@@ -240,7 +240,7 @@ typing-extensions==4.12.2
     #   sqlalchemy
 uri-template==1.3.0
     # via jsonschema
-urllib3==2.2.1
+urllib3==2.2.2
     # via
     #   jupyterhub-kubespawner
     #   kubernetes-asyncio