Bump requests from 2.32.3 to 2.33.0 in /sample-apps/flask-mongo

Bumps [requests](https://github.com/psf/requests) from 2.32.3 to 2.33.0.
- [Release notes](https://github.com/psf/requests/releases)
- [Changelog](https://github.com/psf/requests/blob/main/HISTORY.md)
- [Commits](psf/requests@v2.32.3...v2.33.0)

---
updated-dependencies:
- dependency-name: requests
  dependency-version: 2.33.0
  dependency-type: direct:production
...

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Author: dependabot[bot]