Mute DiskDisruptionIT#testGlobalCheckpointIsSafe

Relates to elastic#43626

Author: davidkyle

server/src/test/java/org/elasticsearch/discovery/DiskDisruptionIT.java

@@ -98,6 +98,7 @@ public FileChannel newFileChannel(Path path, Set<? extends OpenOption> options,
      * It simulates a full power outage by preventing translog checkpoint files to be written and restart the cluster. This means that
      * all un-fsynced data will be lost.
      */
+    @AwaitsFix( bugUrl = "https://github.com/elastic/elasticsearch/issues/43626")
     public void testGlobalCheckpointIsSafe() throws Exception {
         startCluster(rarely() ? 5 : 3);