chore: refresh pixi lockfiles

[github-actions]

Automated lockfile refresh for all workspaces using pixi v0.73.0 (pixi update --no-install, followed by byte-stable pixi lock --check canonicalization).

Lockfiles included in the refresh:

• pixi.lock
• benchmarks/cuda_bindings/pixi.lock
• benchmarks/cuda_core/pixi.lock
• cuda_bindings/pixi.lock
• cuda_core/pixi.lock
• cuda_pathfinder/pixi.lock

See #2298 and #2849.

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[rwgk]

/ok to test 7cd5e86

[github-actions]

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