Merge branch '5.4' into 6.3

* 5.4:
  [FrameworkBundle] Update docblock AbstractController
  [HttpFoundation][FrameworkBundle] Fix default locale is ignored when set_locale_from_accept_language is used
  add missing translations
  [Validator] updated Lithuanian translation
  [Validator] fix some non-sense Lithuanian translations
  [Validator] updated Slovenian translation
  [Validator] updated Finnish translation
  [Validator] Add `Charset` french translation
  [Tests] Streamline CompiledUrlGenerator tests
  [Serializer] Skip uninitialized properties with deep_object_to_populate
  fix Constraints\Email::ERROR_NAMES

Controller/AbstractController.php

@@ -112,7 +112,7 @@ protected function generateUrl(string $route, array $parameters = [], int $refer
     /**
      * Forwards the request to another controller.
      *
-     * @param string $controller The controller name (a string like Bundle\BlogBundle\Controller\PostController::indexAction)
+     * @param string $controller The controller name (a string like "App\Controller\PostController::index" or "App\Controller\PostController" if it is invokable)
      */
     protected function forward(string $controller, array $path = [], array $query = []): Response
     {