WordFence security scan reports that EnlighterJS is abandoned, presumably because it hasn't been updated in a few years. Just pushing a new update with a new version number and updated compatibility info will likely be plenty to make it happy even if there's nothing else new in the release.
Plugin Name: Enlighter – Customizable Syntax Highlighter
Current Plugin Version: 4.6.1
Last Updated: January 20, 2023
Details: It was last updated 2 years 2 months ago and tested up to WordPress 6.1.7. It may have compatibility problems with the current version of WordPress or unknown security issues. Get more information.
Plugin URL: https://enlighterjs.org
Repository URL: https://wordpress.org/plugins/enlighter