Mute ReindexFailureTests.testResponseOnSearchFailure (#49298)

Relates #49295

modules/reindex/src/test/java/org/elasticsearch/index/reindex/ReindexFailureTests.java

@@ -88,6 +88,7 @@ public class ReindexFailureTests extends ReindexTestCase {
      * the whole process. We do lose some information about how far along the
      * process got, but its important that they see these failures.
      */
+    @AwaitsFix(bugUrl = "https://github.com/elastic/elasticsearch/issues/49295")
     public void testResponseOnSearchFailure() throws Exception {
         /*
          * Attempt to trigger a reindex failure by deleting the source index out