Mute ReplicationTrackerRetentionLeaseTests#testAddOrRenewRetentionLease (#38275)

Author: Christoph Büscher

server/src/test/java/org/elasticsearch/index/seqno/ReplicationTrackerRetentionLeaseTests.java

@@ -50,6 +50,7 @@
 
 public class ReplicationTrackerRetentionLeaseTests extends ReplicationTrackerTestCase {
 
+    @AwaitsFix(bugUrl = "https://github.com/elastic/elasticsearch/issues/38245")
     public void testAddOrRenewRetentionLease() {
         final AllocationId allocationId = AllocationId.newInitializing();
         long primaryTerm = randomLongBetween(1, Long.MAX_VALUE);