dev: bump pixi's cuda to 13.1

[cpcloud]

Summary

Update dependencies in cuda-core and cuda-bindings pixi environments via pixi update

This PR contains automated dependency updates from running pixi update on both cuda-core and cuda-bindings pixi environments. All changes were automatically determined by pixi's dependency resolver.

Changes

CUDA Version Update

• cuda-version: 13. → 13.1.** (pin to CUDA 13.1 in both cuda-core and cuda-bindings)

Dependency Updates (cuda-core)

Automated updates via pixi update:

• Python: 3.14.0 → 3.14.1
• Cython: 3.2.1 → 3.2.2
• numpy: 2.3.4 → 2.3.5
• cuda-pathfinder: 1.3.2 → 1.3.3
• exceptiongroup: 1.3.0 → 1.3.1
• pluggy: 1.6.0 (build update)
• libexpat: 2.7.1 → 2.7.3
• BLAS/LAPACK: 3.9.0 → 3.11.0
• Toolchain updates: gcc 14.3.0, binutils 2.45, llvm-openmp 21.1.5 → 21.1.7
• Various system libraries refreshed across linux-64, linux-aarch64, and win-64 platforms

Dependency Updates (cuda-bindings)

Automated updates via pixi update:

• Similar dependency version updates across all supported platforms
• Lock files regenerated with compatible package versions

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[cpcloud]

/ok to test

[cpcloud]

/ok to test

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