Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v3, dlang-community/setup-dlang@4c99aa991ce7d19dd3064de0a4f2f6b2f152e2d7. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/