Bump django-celery-beat from 2.2.1 to 2.3.0

Bumps [django-celery-beat](https://github.com/celery/django-celery-beat) from 2.2.1 to 2.3.0.
- [Release notes](https://github.com/celery/django-celery-beat/releases)
- [Changelog](https://github.com/celery/django-celery-beat/blob/master/Changelog)
- [Commits](celery/django-celery-beat@v2.2.1...v2.3.0)

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

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

requirements/base.txt

@@ -5,7 +5,7 @@ djangorestframework==3.13.1
 
 celery==5.2.6
 django-celery-results==2.3.1
-django-celery-beat==2.2.1
+django-celery-beat==2.3.0
 
 whitenoise==6.1.0