Basically a warning given by GitHub action execution.

Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: thollander/actions-comment-pull-request@v2. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.