Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: DeterminateSystems/magic-nix-cache-action@v2, cachix/cachix-action@v12, actions/upload-artifact@v3. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.