build(deps): bump celery from 5.1.2 to 5.2.1 in /backend/uclapi (#3709)
build(deps): bump celery from 5.1.2 to 5.2.1 in /backend/uclapi (#3709)

Bumps [celery](https://github.com/celery/celery) from 5.1.2 to 5.2.1.
- [Release notes](https://github.com/celery/celery/releases)
- [Changelog](https://github.com/celery/celery/blob/master/Changelog.rst)
- [Commits](https://github.com/celery/celery/compare/v5.1.2...v5.2.1)

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

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Co-authored-by: dependabot[bot] <1c358da00a777d4e9898c1280ab801e2df165188@users.noreply.github.com>
uclapi/uclapi,uclapi/uclapi,uclapi/uclapi,uclapi/uclapi