[AMD][Bugfix] Mamba radix cache: avoid the degenerate single-token (M=1) recompute that corrupts the first token - #29633

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/labeler@v5. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/