Update dependency pixi to v0.78.0

[manselmi-renovate]

This PR contains the following updates:

Package	Type	Update	Change
pixi	tools	minor	v0.77.1 → v0.78.0

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Release Notes

prefix-dev/pixi (pixi)

v0.78.0

Compare Source

[0.78.0] - 2026-08-28

✨ Highlights

• You can now use the CLI to add path dependencies with the following command:

  pixi add --path ~/dev/pixi pixi
  pixi add --path ~/dev/vinca vinca --pypi
  pixi add --path ~/dev/ros_ws/src/common/package.xml ros-jazzy-common

• Pixi now can also share the configuration with rattler-based tools like rattler-build and rattler-index.
• The PEP 723 script support has been improved with better caching and resolution of scripts.

Added

• Write manifest platform names instead of pN aliases by @​ruben-arts in #​6885
• Rework the terminal output by @​Hofer-Julian in #​6869
• Read the shared config layer of rattler-based tools by @​Hofer-Julian in #​6776
• Cache and update script resolutions by @​manzt in #​6893
• Honor the shared index-config when indexing a channel by @​Hofer-Julian in #​6896
• Add --path to the pixi add command by @​ruben-arts in #​6904

Changed

• Solve scripts against the host's virtual packages by @​Hofer-Julian in #​6865
• Replace the distro index fetch with a static mapping by @​Hofer-Julian in #​6881
• Drop unused InstallChange helpers by @​Hofer-Julian in #​6897
• Pin the ROS fixture's macOS compiler to unbreak CI by @​baszalmstra in #​6906

Fixed

• Group legacy purl fallback traces by @​baszalmstra in #​6886
• Solve lockless scripts in pixi workspace platform by @​Hofer-Julian in #​6882
• Show progress for pixi add and other commands that solve by @​Hofer-Julian in #​6892

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