Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: xt0rted/markdownlint-problem-matcher@v3. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

Could not determine node version from /home/runner/work/arduino-cli/arduino-cli/package.json. Falling back