exempt celery api endpoint from model method tets

Author: valentijnscholten

unittests/test_apiv2_methods_and_endpoints.py

@@ -45,7 +45,7 @@ def setUp(self):
 
     def test_is_defined(self):
         exempt_list = {
-            "import-scan", "reimport-scan", "notes", "system_settings", "roles",
+            "import-scan", "reimport-scan", "notes", "system_settings", "celery", "roles",
             "import-languages", "endpoint_meta_import", "test_types",
             "configuration_permissions", "questionnaire_questions",
             "questionnaire_answers", "questionnaire_answered_questionnaires",