Issue #3385093: RendererInterface declaration missing

src/Controller/ConfigOverviewController.php

@@ -7,6 +7,7 @@ use Drupal\config_override_warn\FormOverrides;
 use Drupal\Core\Config\Config;
 use Drupal\Core\Controller\ControllerBase;
 use Drupal\Core\Extension\ModuleHandlerInterface;
+use Drupal\Core\Render\RendererInterface;
 use Drupal\Core\Site\Settings;
 use Drupal\Core\Url;
 use Symfony\Component\DependencyInjection\ContainerInterface;