try to fix test

Author: zaaarf

ext/standard/tests/gh21992t.phpt

@@ -3,7 +3,8 @@ GH-21992: symlink() must not resolve the final dangling link component
 --SKIPIF--
 <?php
 if (PHP_OS_FAMILY === 'Windows') {
-    die('not for Windows');
+    require_once __DIR__ . '/windows_links/common.inc';
+    skipIfSeCreateSymbolicLinkPrivilegeIsDisabled(__FILE__);
 }
 ?>
 --FILE--