Mark fail over on follower test as awaits fix

This test is failing since the introduction of recovery from
remote. This commit marks this test as awaits fix.

x-pack/plugin/ccr/src/test/java/org/elasticsearch/xpack/ccr/FollowerFailOverIT.java

@@ -54,6 +54,7 @@ public class FollowerFailOverIT extends CcrIntegTestCase {
         return false;
     }
 
+    @AwaitsFix(bugUrl = "https://github.com/elastic/elasticsearch/issues/38633")
     public void testFailOverOnFollower() throws Exception {
         final String leaderIndex = "leader_test_failover";
         final String followerIndex = "follower_test_failover";