[6.x]: {% js %} block no longer executes on plugin utility pages

### What happened? ### Description I am not using the yii2-adapter package. I noticed that {% js %} blocks that worked in Craft 5 no longer execute on custom plugin Utility pages in Craft 6. Example: ``` {% js %} document.addEventListener("DOMContentLoaded", function () { alert('test'); }); {% endjs %} ``` ### Expected behavior: Script should be registered/executed Alert should appear, same behavior as Craft 5 ### Craft CMS version 6.0.0-alpha.4 ### PHP version _No response_ ### Operating system and version _No response_ ### Database type and version _No response_ ### Image driver and version _No response_ ### Installed plugins and versions -