Close Translog trimming task when IndexService is closed

Relates to #25622

Author: bleskes

core/src/main/java/org/elasticsearch/index/IndexService.java

@@ -268,7 +268,7 @@ public synchronized void close(final String reason, boolean delete) throws IOExc
                     }
                 }
             } finally {
-                IOUtils.close(bitsetFilterCache, indexCache, indexFieldData, mapperService, refreshTask, fsyncTask);
+                IOUtils.close(bitsetFilterCache, indexCache, indexFieldData, mapperService, refreshTask, fsyncTask, trimTranslogTask);
             }
         }
     }