Replace FailedToCommitClusterStateException with NotMasterException (#136083)

Replaces the `FailedToCommitClusterStateException` inside 
`MasterService .BatchingTaskQueue.submitTask` with a 
`NotMasterException`. Since this exception is thrown when the 
node is shutting down and closing its threadpools, it can no longer 
be the current master.

Relates to: ES-13061

Author: joshua-adams-1

server/src/main/java/org/elasticsearch/cluster/service/MasterService.java

@@ -1607,13 +1607,7 @@ public void submitTask(String source, T task, @Nullable TimeValue timeout) {
                 } catch (Exception e) {
                     assert e instanceof EsRejectedExecutionException esre && esre.isExecutorShutdown() : e;
                     task.onFailure(
-                        new FailedToCommitClusterStateException(
-                            "could not schedule timeout handler for [%s][%s] on queue [%s]",
-                            e,
-                            source,
-                            task,
-                            name
-                        )
+                        new NotMasterException("could not schedule timeout handler for [%s][%s] on queue [%s]", e, source, task, name)
                     );
                     return;
                 }

server/src/test/java/org/elasticsearch/cluster/service/MasterServiceTests.java

@@ -2249,7 +2249,7 @@ public void testTimeoutRejectionBehaviourAtSubmission() {
             ).submitTask(source, new ClusterStateTaskListener() {
                 @Override
                 public void onFailure(Exception e) {
-                    if (e instanceof FailedToCommitClusterStateException
+                    if (e instanceof NotMasterException
                         && e.getMessage().startsWith("could not schedule timeout handler")
                         && e.getCause() instanceof EsRejectedExecutionException esre
                         && esre.isExecutorShutdown()