chore(deps): bump celery from 4.4.7 to 5.0.3

Bumps [celery](https://github.com/celery/celery) from 4.4.7 to 5.0.3.
- [Release notes](https://github.com/celery/celery/releases)
- [Changelog](https://github.com/celery/celery/blob/master/Changelog.rst)
- [Commits](celery/celery@v4.4.7...v5.0.3)

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

Author: dependabot-preview[bot]

requirements/common.txt

@@ -17,7 +17,7 @@ psycopg2-binary==2.8.6
 SQLAlchemy-Utils==0.36.8
 itsdangerous==1.1
 humanize==3.1.0
-celery==4.4.7
+celery==5.0.3
 redis==3.5.3
 apscheduler==3.6.3
 pillow==8.0.1