Fix testQueuedSnapshotOperationsAndBrokenRepoOnMasterFailOverMultiple (#62713) (#62747)

There's possible retries here that work out if both the snapshot and the delete
operation are retried when master shuts down and hits the unlikely case of the retried delete
executing before the retried snapshot, making both operations pass.

Closes #62686

Author: original-brownbear

server/src/internalClusterTest/java/org/elasticsearch/snapshots/ConcurrentSnapshotsIT.java

@@ -806,7 +806,12 @@ public void testQueuedSnapshotOperationsAndBrokenRepoOnMasterFailOverMultipleRep
         expectThrows(ElasticsearchException.class, snapshotThree::actionGet);
         expectThrows(ElasticsearchException.class, snapshotFour::actionGet);
         assertAcked(deleteFuture.get());
-        expectThrows(ElasticsearchException.class, createBlockedSnapshot::actionGet);
+        try {
+            createBlockedSnapshot.actionGet();
+        } catch (ElasticsearchException ex) {
+            // Ignored, thrown most of the time but due to retries when shutting down the master could randomly pass when the request is
+            // retried and gets executed after the above delete
+        }
     }
 
     public void testMultipleSnapshotsQueuedAfterDelete() throws Exception {