[ticket/12099] Add request argument to path_helper service

PHPBB3-12099

tests/extension/metadata_manager_test.php

@@ -50,6 +50,8 @@ class phpbb_extension_metadata_manager_test extends phpbb_database_test_case
 					new phpbb_mock_request()
 				),
 				new \phpbb\filesystem(),
+				$this->getMock('\phpbb\request\request'),
+				new \phpbb\config\config(array()),
 				$this->phpbb_root_path,
 				$this->phpEx
 			),