Bump rq from 1.11.0 to 1.15.1 in /python (#114)

Bumps [rq](https://github.com/nvie/rq) from 1.11.0 to 1.15.1.
- [Release notes](https://github.com/nvie/rq/releases)
- [Changelog](https://github.com/rq/rq/blob/master/CHANGES.md)
- [Commits](rq/rq@v1.11...v1.15.1)

---
updated-dependencies:
- dependency-name: rq
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

python/requirements.txt

@@ -1,4 +1,4 @@
 Flask==2.2.1
 psycopg2-binary==2.9.3
 redis==4.3.4
-rq==1.11.0
+rq==1.15.1