add grouped job metrics to calculation

Author: Avi-Robusta

robusta_krr/core/integrations/prometheus/metrics_service/prometheus_metrics_service.py

@@ -346,6 +346,13 @@ async def load_pods(self, object: K8sObjectData, period: timedelta) -> list[PodD
             pod_owner_kind = "Job"
 
             del jobs
+        elif object.kind == "GroupedJob":
+            if hasattr(object._api_resource, '_grouped_jobs'):
+                pod_owners = [job.metadata.name for job in object._api_resource._grouped_jobs]
+                pod_owner_kind = "Job"
+            else:
+                pod_owners = [object.name]
+                pod_owner_kind = object.kind
         else:
             pod_owners = [object.name]
             pod_owner_kind = object.kind