I've got a site smoothly running on Drupal 9.4.8 and PHP 8.1. Now I would like to enable APCu in PHP, but my provider unfortunately has installed APCu for PHP 8.0 only. If I simply switch to PHP 8.0, my Drupal installation gives me a an error message:
Composer detected issues in your platform: Your Composer dependencies require a PHP version ">= 8.1.0".
Which steps do I have to do, in order to make my site work in PHP 8.0?