🔥 FIX - a linear group reports the level its members were set from, not their raw brightness 🎚️ (#10) - #65

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