feat(upgrade): Default to superuser for first user (#13706)

Right now this is breaking docker-sentry git builds. Guessing it will
cause more issues in the future and was reported here on the forums:

https://forum.sentry.io/t/enhancement-configs-not-found-on-latest-branches/6800?u=byk

Author: BYK

MANIFEST.in

@@ -4,6 +4,7 @@ recursive-include ./ requirements*.txt
 recursive-include src/sentry/templates *
 recursive-include src/sentry/locale *
 recursive-include src/sentry/data *
+recursive-include src/sentry/grouping *
 recursive-include src/sentry/static/sentry *
 recursive-include src/sentry/scripts *.lua
 recursive-include src/sentry/integration-docs *.json

src/sentry/receivers/users.py

@@ -30,7 +30,7 @@ def create_first_user(created_models, verbosity, db, app=None, **kwargs):
         return
 
     from sentry.runner import call_command
-    call_command('sentry.runner.commands.createuser.createuser')
+    call_command('sentry.runner.commands.createuser.createuser', superuser=True)
 
 
 post_syncdb.connect(