test(deps): update dependency pixi to v0.75.0 (main)

[renovate]

This PR contains the following updates:

Package	Update	Change
pixi	minor	v0.74.0 → v0.75.0

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Release Notes

prefix-dev/pixi (pixi)

v0.75.0

Compare Source

[0.75.0] - 2026-07-29

✨ Highlights

pixi publish now publishes every workspace package that opts in in dependency order. It also refuses to publish anything if a necessary source dependencies didn't opt into being published.

[package]
name = "cpp_math"
publish = true

Offline solves now only consider conda packages you already have, either in the package cache or on a local file:// channel.

That means that you can run pixi update --offline and it will resolve with the packages you have local on your machine.

Completion is now generated from the CLI itself, so environment, platform, feature, and task names complete on every option that takes one, in bash, zsh, fish, and nushell.

As usual we also fixed a couple of bugs.

Added

• Publish the workspace packages that opt in by @​Hofer-Julian in #​6526
• Rework completion by @​hunger in #​6686
• Restrict offline solves to locally available packages by @​Hofer-Julian in #​6644
• Validate __archspec microarchitecture names by @​hunger in #​6701

Changed

• Report the assumed platform per environment by @​hunger in #​6508
• Reuse cached artifacts for immutable sources when the cache dir is gone by @​Hofer-Julian in #​6699

Documentation

• Explain that $PREFIX is not expanded on Windows by @​baszalmstra in #​6690

Fixed

• Clean stale files from incremental ROS Python builds by @​baszalmstra in #​6691
• Fix CI on main and slim down extra slow tests by @​Hofer-Julian in #​6708

Removed

• Remove stray insta snapshot artifact by @​hunger in #​6683

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