[Test] Fix DuelScrollIT#testDuelIndexOrderQueryThenFetch

This commit disables the automatic `refresh_interval` in order to ensure
that index readers cannot differ between the normal and scroll search.
This issue is related to the 7.5 Lucene upgrade which contains a change that
makes single segment merge more likely to occur (max deletes percentage).

Closes #32682

Author: jimczi

server/src/test/java/org/elasticsearch/search/scroll/DuelScrollIT.java

@@ -199,6 +199,8 @@ private int createIndex(boolean singleShard) throws Exception {
         }
         // no replicas, as they might be ordered differently
         settings.put(IndexMetaData.SETTING_NUMBER_OF_REPLICAS, 0);
+        // we need to control refreshes as they might take different merges into account
+        settings.put("index.refresh_interval", -1);
 
         assertAcked(prepareCreate("test").setSettings(settings.build()).get());
         final int numDocs = randomIntBetween(10, 200);
@@ -257,7 +259,6 @@ private void testDuelIndexOrder(SearchType searchType, boolean trackScores, int
         }
     }
 
-    @AwaitsFix(bugUrl = "https://github.com/elastic/elasticsearch/issues/32682")
     public void testDuelIndexOrderQueryThenFetch() throws Exception {
         final SearchType searchType = RandomPicks.randomFrom(random(), Arrays.asList(SearchType.QUERY_THEN_FETCH,
             SearchType.DFS_QUERY_THEN_FETCH));