System actions for adding/removing roles are no longer created via hook_ENTITY_TYPE_insert()

The hook hook_ENTITY_TYPE_insert() no longer creates system actions for adding and removing roles from a user when a user role is created. The actions are system.action.user_add_role_action.<role_id> and system.action.user_remove_role_action.<role_id>.

These actions can now be added via the configuration API, either through configuration synchronization or as configuration entities included in an install profile or a recipe.

user_add_role and user_remove_role system actions are still automatically created when a role is created via the Drupal admin UI.