-lc/-ld: a bare figure is MEGABYTES, not a power of two - #181

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830, actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02, KyleMayes/install-llvm-action@ebc0426251bc40c7cd31162802432c68818ab8f0. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/