link_attributes is unused in entity_add_list

Closes #3448297

templates/admin/entity-add-list.html.twig

@@ -36,7 +36,7 @@
         {% set link_attributes = create_attribute(bundle_attributes).addClass('admin-item__link') %}
         {% set description_id = bundle.add_link.text|clean_id ~ '-desc' %}
         <div{{ create_attribute({ class: item_classes }) }}>
-          <a class="admin-item__link" title="{{ bundle.add_link.text }}" href="{{ bundle.add_link.url }}"></a>
+          <a href="{{ bundle.add_link.url }}" title="{{ bundle.add_link.text }}" {{ link_attributes }}></a>
           <div class="admin-item__title"{% if bundle.description %} aria-details="{{ description_id }}"{% endif %}>
             {{ bundle.add_link.text }}
           </div>