[upstream] html_response.attachments_processor service must be replaced instead of decorated

Currently \Drupal\attachinline\Render\HtmlResponseAttachmentsProcessor must replace the core html_response.attachments_processor service, rather than just decorating it like other services are able to.

This is necessary because

• The list of supported keys in #attached is hard-coded
• A static call to \Drupal\Core\Asset\AttachedAssets::createFromRenderArray()