Increase the total number of allowed fields in UpdateMappingIntegrationIT#testDynamicUpdates

With restriction for the total number of fields introduced in #17357 this test can fail if a large number of records is randomly selected for indexing.

core/src/test/java/org/elasticsearch/indices/mapping/UpdateMappingIntegrationIT.java

@@ -66,6 +66,7 @@ public class UpdateMappingIntegrationIT extends ESIntegTestCase {
                         settingsBuilder()
                                 .put("index.number_of_shards", 1)
                                 .put("index.number_of_replicas", 0)
+                                .put(MapperService.INDEX_MAPPING_TOTAL_FIELDS_LIMIT_SETTING.getKey(), Long.MAX_VALUE)
                 ).execute().actionGet();
         client().admin().cluster().prepareHealth().setWaitForEvents(Priority.LANGUID).setWaitForGreenStatus().execute().actionGet();