ISTWCMS-3908: Replace path.validator with Url::access()

uw_dashboard.module

@@ -62,7 +62,7 @@ function uw_dashboard_toolbar_alter(&$items) {
   // Adding config form for user with permission to update it. This prevents
   // menu item to be displayed and getting access denied by clicking on it.
   $url = Url::fromRoute('uw_dashboard.allowed_blocks');
-  if (\Drupal::service('path.validator')->isValid($url->getInternalPath())) {
+  if ($url->access()) {
     $items['dashboards']['tray']['dashboards']['#items'][] = [
       '#type' => 'link',
       '#title' => 'Allowed blocks',