paperwork: Slightly change structure of mailing lists api for Mailman3

paperwork/api.py

@@ -59,10 +59,10 @@ class DepartmentViewSet(viewsets.ModelViewSet):
             lists[department.list_name] = {
                 "config": {
                     "real_name": department.list_name,
-                    "moderator": moderator_emails,
                     "subject_prefix": f"[CMS {department.name}] ",
                     "reply_to_address": department.list_reply_to_address,
                 },
+                "moderators": moderator_emails,
                 "members": active_certified_members,
             }