The 'responsive_menu.superfish' library is depending on a deprecated library. The core/jquery.once asset library is deprecated in Drupal 9.3.0 and will be removed in Drupal 10.0.0. Use the core/once library instead. See https://www.drupal.org/node/3158256
Results are from dataset #9317 from 2023-01-29T14:42. Report is ran by the Drupal Association regularly.