Bump requests from 2.32.0 to 2.32.3

Bumps [requests](https://github.com/psf/requests) from 2.32.0 to 2.32.3.
- [Release notes](https://github.com/psf/requests/releases)
- [Changelog](https://github.com/psf/requests/blob/main/HISTORY.md)
- [Commits](psf/requests@v2.32.0...v2.32.3)

---
updated-dependencies:
- dependency-name: requests
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

backend/requirements.txt

@@ -15,7 +15,7 @@ Jinja2==3.1.4
 MarkupSafe==2.1.5
 pi==0.1.2
 pipp==0.0.1
-requests==2.32.0
+requests==2.32.3
 setuptools==69.5.1
 soupsieve==2.5
 urllib3==2.2.1