Fix task for child request

Author: smalyshev

x-pack/plugin/esql/src/main/java/org/elasticsearch/xpack/esql/plugin/ClusterComputeHandler.java

@@ -130,7 +130,7 @@ void startComputeOnRemoteCluster(
                         cluster.connection,
                         ComputeService.CLUSTER_ACTION_NAME,
                         clusterRequest,
-                        rootTask,
+                        listenerGroup.getGroupTask(),
                         TransportRequestOptions.EMPTY,
                         new ActionListenerResponseHandler<>(clusterListener, ComputeResponse::new, esqlExecutor)
                     );