ClusterState publishing shouldn't trigger circuit breakers (#20986)

Updating the circuit breaker settings (and other settings) should always be possible, even if the cluster is under stress. With #20827 we updated the cluster settings request to not trigger circuit breakers. However that change is not complete since the resulting cluster state can potentially not be published. This change makes sure cluster state publishing to not trigger circuit breakers as well.

Relates to #20960 where this was discovered.

Author: bleskes

core/src/main/java/org/elasticsearch/discovery/zen/publish/PublishClusterStateAction.java

@@ -103,8 +103,10 @@ public PublishClusterStateAction(
         this.discoverySettings = discoverySettings;
         this.clusterName = clusterName;
         this.pendingStatesQueue = new PendingClusterStatesQueue(logger, settings.getAsInt(SETTINGS_MAX_PENDING_CLUSTER_STATES, 25));
-        transportService.registerRequestHandler(SEND_ACTION_NAME, BytesTransportRequest::new, ThreadPool.Names.SAME, new SendClusterStateRequestHandler());
-        transportService.registerRequestHandler(COMMIT_ACTION_NAME, CommitClusterStateRequest::new, ThreadPool.Names.SAME, new CommitClusterStateRequestHandler());
+        transportService.registerRequestHandler(SEND_ACTION_NAME, BytesTransportRequest::new, ThreadPool.Names.SAME, false, false,
+            new SendClusterStateRequestHandler());
+        transportService.registerRequestHandler(COMMIT_ACTION_NAME, CommitClusterStateRequest::new, ThreadPool.Names.SAME, false, false,
+            new CommitClusterStateRequestHandler());
     }
 
     public PendingClusterStatesQueue pendingStatesQueue() {