MOAI decision trees as GDP disjunctions - #149

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

[setup-julia] x64 arch has been requested on a macOS runner that has an arm64 (Apple Silicon) architecture. You may have meant to use the "aarch64" arch instead (or left it unspecified for the correct default).