[CORE] [TEST] HistoryServerSuite failed due to timezone issue

follow up for #6377
Change time to the equivalent in GMT
/cc squito

Author: scwf <wangfei1@huawei.com>

Closes #6425 from scwf/fix-HistoryServerSuite and squashes the following commits:

4d37935 [scwf] fix HistoryServerSuite

core/src/test/scala/org/apache/spark/deploy/history/HistoryServerSuite.scala

@@ -82,7 +82,7 @@ class HistoryServerSuite extends FunSuite with BeforeAndAfter with Matchers with
     "running app list json" -> "applications?status=running",
     "minDate app list json" -> "applications?minDate=2015-02-10",
     "maxDate app list json" -> "applications?maxDate=2015-02-10",
-    "maxDate2 app list json" -> "applications?maxDate=2015-02-03T10:42:40.000CST",
+    "maxDate2 app list json" -> "applications?maxDate=2015-02-03T16:42:40.000GMT",
     "one app json" -> "applications/local-1422981780767",
     "one app multi-attempt json" -> "applications/local-1426533911241",
     "job list json" -> "applications/local-1422981780767/jobs",