Bump urllib3 from 2.6.2 to 2.6.3

Bumps [urllib3](https://github.com/urllib3/urllib3) from 2.6.2 to 2.6.3.
- [Release notes](https://github.com/urllib3/urllib3/releases)
- [Changelog](https://github.com/urllib3/urllib3/blob/main/CHANGES.rst)
- [Commits](urllib3/urllib3@2.6.2...2.6.3)

---
updated-dependencies:
- dependency-name: urllib3
  dependency-version: 2.6.3
  dependency-type: direct:production
...

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

Author: dependabot[bot]

requirements.txt

@@ -36,5 +36,5 @@ time-machine==3.2.0
 typing-inspection==0.4.2
 typing_extensions==4.15.0
 tzdata==2025.3
-urllib3==2.6.2
+urllib3==2.6.3
 uvicorn==0.40.0