docs: add a Stages SB20 section to 22_devices_detail.md - #4852

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-python@v5, actions/upload-artifact@v4, jurplel/install-qt-action/action@v3, jwlawson/actions-setup-cmake@v1.9. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

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