Mute RemoteRestoreSnapshotIT.testRestoreInSameRemoteStoreEnabledIndex

This fails frequently. Muting for now until it is fixed to unblock
unrelated PRs.

Signed-off-by: Andrew Ross <andrross@amazon.com>

server/src/internalClusterTest/java/org/opensearch/remotestore/RemoteRestoreSnapshotIT.java

@@ -257,6 +257,7 @@ public void testRestoreOperationsShallowCopyEnabled() throws IOException, Execut
         assertDocsPresentInIndex(client, restoredIndexName1Doc, numDocsInIndex1 + 2);
     }
 
+    @AwaitsFix(bugUrl = "https://github.com/opensearch-project/OpenSearch/issues/9326")
     public void testRestoreInSameRemoteStoreEnabledIndex() throws IOException {
         String clusterManagerNode = internalCluster().startClusterManagerOnlyNode();
         String primary = internalCluster().startDataOnlyNode();