feat(cuda-oxide): shared-memory i32/addrspace(3) codegen and CTA-local TMA without SharedPtr - #1656

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/