perf(GFX1100-TG200): the 200 tok/s gfx1100 decode campaign and fp8 KV cache decode attention - #1936

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/