Bump requests from 2.32.3 to 2.32.4 in /docs/sphinx (#471)

Bumps [requests](https://github.com/psf/requests) from 2.32.3 to 2.32.4.
- [Release notes](https://github.com/psf/requests/releases)
- [Changelog](https://github.com/psf/requests/blob/main/HISTORY.md)
- [Commits](https://github.com/psf/requests/compare/v2.32.3...v2.32.4)

---
updated-dependencies:
- dependency-name: requests
  dependency-version: 2.32.4
  dependency-type: indirect
...

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

docs/sphinx/requirements.txt

@@ -222,7 +222,7 @@ referencing==0.36.2
     # via
     #   jsonschema
     #   jsonschema-specifications
-requests==2.32.3
+requests==2.32.4
     # via
     #   pygithub
     #   sphinx