Merge branch 'renovate/django-cleanup-7.x' into 'master'

Update dependency django-cleanup to v7

See merge request !1176

pyproject.toml

@@ -113,7 +113,7 @@ ipython = "^8.0.0"
 django-oauth-toolkit = "^2.0.0"
 django-storages = {version = "^1.11.1", optional = true}
 boto3 = {version = "^1.17.33", optional = true}
-django-cleanup = "^6.0.0"
+django-cleanup = "^7.0.0"
 djangorestframework = "^3.12.4"
 Whoosh = "^2.7.4"
 django-titofisto = "^0.2.0"