Bump requests from 2.28.0 to 2.31.0

Bumps [requests](https://github.com/psf/requests) from 2.28.0 to 2.31.0.
- [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/v2.28.0...v2.31.0)

---
updated-dependencies:
- dependency-name: requests
  dependency-type: direct:production
...

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

requirements.txt

@@ -2,4 +2,4 @@ Flask==2.3.2
 Flask-Bootstrap==3.3.7.1
 numpy==1.23.0
 opencv-python==4.6.0.66
-requests==2.28.0
+requests==2.31.0