upgraded dependencies

vendor/symfony/translation/Loader/IcuResFileLoader.php

@@ -26,7 +26,7 @@ class IcuResFileLoader implements LoaderInterface
     /**
      * {@inheritdoc}
      */
-    public function load($resource, $locale, $domain = 'messages')
+    public function load($resource, string $locale, string $domain = 'messages')
     {
         if (!stream_is_local($resource)) {
             throw new InvalidResourceException(sprintf('This is not a local file "%s".', $resource));
@@ -73,9 +73,9 @@ class IcuResFileLoader implements LoaderInterface
      * @param array           $messages Used internally for recursive calls
      * @param string          $path     Current path being parsed, used internally for recursive calls
      *
-     * @return array the flattened ResourceBundle
+     * @return array
      */
-    protected function flatten(\ResourceBundle $rb, array &$messages = [], $path = null)
+    protected function flatten(\ResourceBundle $rb, array &$messages = [], string $path = null)
     {
         foreach ($rb as $key => $value) {
             $nodePath = $path ? $path.'.'.$key : $key;