Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: DavidAnson/markdownlint-cli2-action@30a0e04f1870d58f8d717450cc6134995f993c63. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/