Mute org.elasticsearch.xpack.restart.FullClusterRestartIT testSingleDoc {cluster=UPGRADED} #119434

Author: elasticsearchmachine

muted-tests.yml

@@ -443,3 +443,6 @@ tests:
 - class: org.elasticsearch.xpack.restart.FullClusterRestartIT
   method: testSecurityNativeRealm {cluster=UPGRADED}
   issue: https://github.com/elastic/elasticsearch/issues/119423
+- class: org.elasticsearch.xpack.restart.FullClusterRestartIT
+  method: testSingleDoc {cluster=UPGRADED}
+  issue: https://github.com/elastic/elasticsearch/issues/119434