make carta send correct failure when failing.

shared/workspaces/workspaces/workflow/services/workflow_service.py

@@ -1107,6 +1107,11 @@ class WorkflowMessageHandler:
 
             if wf_request.workflow_name == "carta":
                 wf_key = "carta-instance-ready"
+                if event_type == "complete":
+                    # carta exist by killing its processes which condor reads as an error.
+                    # A 'normal' exit 0 for carta is actually a failure and the carta_complete message doesn't exist.
+                    # fix message type
+                    event_type = "failed"
             else:
                 wf_key = wf_request.workflow_name