Fix mismatch of parameters in Execution.from_response_json

Author: aversey

Diff for: python/hopsworks_common/execution.py

@@ -66,7 +66,7 @@ def __init__(
         self._execution_api = execution_api.ExecutionsApi(project_id)
 
     @classmethod
-    def from_response_json(cls, json_dict, project_id, job):
+    def from_response_json(cls, json_dict, project_id=None, job=None):
         json_decamelized = humps.decamelize(json_dict)
         if "count" not in json_decamelized:
             return cls(**json_decamelized, project_id=project_id, job=job)