Bump requests from 2.28.1 to 2.31.0 (#445)

Bumps [requests](https://github.com/psf/requests) from 2.28.1 to 2.31.0.
- [Release notes](https://github.com/psf/requests/releases)
- [Changelog](https://github.com/psf/requests/blob/main/HISTORY.md)
- [Commits](psf/requests@v2.28.1...v2.31.0)

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

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

requirements.txt

@@ -2,7 +2,7 @@ Flask==2.2.3
 jinja2==3.1.4
 Werkzeug~=2.2.3
 
-requests==2.28.1
+requests==2.31.0
 gunicorn
 
 cryptography==39.0.2