undeployed: protocol-selectable (midnight-1.x default | midnight-2.x) — UNDEPLOYED_PROTOCOL switch, v2 undeployed() profile, 2.x external-stack suite - #16

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