Refs #27661 -- Added Tags.staticfiles.

Follow up to 0ec4dc91e0.

django/contrib/staticfiles/apps.py

@@ -10,4 +10,4 @@ class StaticFilesConfig(AppConfig):
     ignore_patterns = ['CVS', '.*', '*~']
 
     def ready(self):
-        checks.register(check_finders, 'staticfiles')
+        checks.register(check_finders, checks.Tags.staticfiles)

django/core/checks/registry.py

@@ -15,6 +15,7 @@ class Tags:
     models = 'models'
     security = 'security'
     signals = 'signals'
+    staticfiles = 'staticfiles'
     templates = 'templates'
     translation = 'translation'
     urls = 'urls'