Add job delegation - #176

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: HatsuneMiku3939/direnv-action@89ed6f6786c25aa7a69cd12f9fd0fdcb46c7c489, nix-community/cache-nix-action@135667ec418502fa5a3598af6fb9eb733888ce6a, Swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/