order class names alphabetically

The codechecker wants the "implements" class names in alphabetical order

Author: TamaroWalter

classes/privacy/provider.php

@@ -40,9 +40,9 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class provider implements
-    core_userlist_provider,
     \core_privacy\local\metadata\provider,
-    \core_privacy\local\request\plugin\provider {
+    \core_privacy\local\request\plugin\provider,
+    core_userlist_provider {
     /**
      * Function that describes the type of data that is stored.
      * @param collection $collection