15553 change graphql sub-queries from functions to types (#15557)

* 15553 change graphql list to types

* 15553 review changes

netbox/users/graphql/types.py

@@ -34,6 +34,4 @@ class GroupType:
     filters=UserFilter
 )
 class UserType:
-    @strawberry_django.field
-    def groups(self) -> List[GroupType]:
-        return self.groups.all()
+    groups: List[GroupType]