style(endpoints/api/repoemail): ran yapf

### Description of Changes

Issue: https://coreosdev.atlassian.net/browse/QUAY-626

## Reviewer Checklist

- [ ] It works!
- [ ] Comments provide sufficient explanations for the next contributor
- [ ] Tests cover changes and corner cases
- [ ] Follows Quay syntax patterns and format

endpoints/api/repoemail_models_interface.py

@@ -5,7 +5,13 @@ from six import add_metaclass
 
 
 class RepositoryAuthorizedEmail(
-  namedtuple('RepositoryAuthorizedEmail', ['email', 'repository_name', 'namespace_name', 'confirmed', 'code',])):
+    namedtuple('RepositoryAuthorizedEmail', [
+      'email',
+      'repository_name',
+      'namespace_name',
+      'confirmed',
+      'code',
+    ])):
   """
   Tag represents a name to an image.
   :type email: string