Use UTC timezone for the build dates

src/org/lineageos/updater/controller/UpdaterService.java

@@ -364,7 +364,7 @@ public class UpdaterService extends Service {
     }
 
     private void setNotificationTitle(UpdateDownload update) {
-        String buildDate = StringGenerator.getDateLocalized(this,
+        String buildDate = StringGenerator.getDateLocalizedUTC(this,
                 DateFormat.MEDIUM, update.getTimestamp());
         String buildInfo = getString(R.string.list_build_version_date,
                 BuildInfoUtils.getBuildVersion(), buildDate);