Override and mute InternalAutoDateHistogramTests#testReduceRandom() (#39536)

pending resolution of #39497

server/src/test/java/org/elasticsearch/search/aggregations/bucket/histogram/InternalAutoDateHistogramTests.java

@@ -109,6 +109,13 @@ public class InternalAutoDateHistogramTests extends InternalMultiBucketAggregati
         assertThat(result, equalTo(2));
     }
 
+    @Override
+    @AwaitsFix(bugUrl = "https://github.com/elastic/elasticsearch/issues/39497")
+    // TODO: When resolving the above AwaitsFix, just delete this override. Method is only overriden to apply the annotation.
+    public void testReduceRandom() {
+        super.testReduceRandom();
+    }
+
     @Override
     protected void assertReduced(InternalAutoDateHistogram reduced, List<InternalAutoDateHistogram> inputs) {