Issue #3422037: Fix PHPUnit tests in Drupal 10.
git commit -m 'Issue #3422037: Fix PHPUnit tests in Drupal 10. Tests were failing due to a non-existent 'menu.tree_storage' service. (see https://www.drupal.org/project/drupal/issues/3385730). Replaced it with 'plugin.manager.menu.link' service. And since the "Stable" theme is no longer present (see change record https://www.drupal.org/node/3309392)'