Fixing up the yamls - #345

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/upload-artifact@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

The process '/usr/bin/git' failed with exit code 128

Changes affect 6 release directories: 48_two_tracks, 64_voices_of_sid, 71_degenerator, 72_motorik, 76_hot_fuzz, 86_tesserae.