Bump requests from 2.22.0 to 2.31.0 in /app (#23)

Bumps [requests](https://github.com/psf/requests) from 2.22.0 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@v2.22.0...v2.31.0)

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

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

app/requirements.txt

@@ -28,7 +28,7 @@ pyserial==3.4
 pytest==5.2.1
 pytest-bdd==3.2.1
 PyYAML==5.4
-requests==2.22.0
+requests==2.31.0
 six==1.12.0
 urllib3==1.26.5
 virtualenv==16.4.1