fix(ci): modify module name from config to core

Author: aleattene

config/settings.py

@@ -195,4 +195,4 @@
 MEDIA_ROOT = os.path.join(BASE_DIR, 'media')
 
 # Custom Model to use for authentication
-AUTH_USER_MODEL = 'users.CustomUser'
+AUTH_USER_MODEL = 'users.CustomUser'

manage.py

@@ -8,7 +8,7 @@ def main():
     """Run administrative tasks."""
     os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'config.settings')
     try:
-        from django.config.management import execute_from_command_line
+        from django.core.management import execute_from_command_line
     except ImportError as exc:
         raise ImportError(
             "Couldn't import Django. Are you sure it's installed and "