Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: KyleMayes/install-llvm-action@ebc0426251bc40c7cd31162802432c68818ab8f0. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/