Bump celery from 5.3.6 to 5.4.0

Bumps [celery](https://github.com/celery/celery) from 5.3.6 to 5.4.0.
- [Release notes](https://github.com/celery/celery/releases)
- [Changelog](https://github.com/celery/celery/blob/main/Changelog.rst)
- [Commits](celery/celery@v5.3.6...v5.4.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

requirements/base.txt

@@ -3,7 +3,7 @@ django-environ==0.11.2
 psycopg2==2.9.9
 djangorestframework==3.15.2
 
-celery==5.3.6
+celery==5.4.0
 django-celery-results==2.5.1
 django-celery-beat==2.6.0