fix: for local directory satisfiability

[tdejager]

Given a pixi.toml like:

[workspace]
authors = ["Tim de Jager <tim@prefix.dev>"]
channels = ["https://prefix.dev/conda-forge"]
name = "installation-order"
platforms = ["osx-arm64"]
version = "0.1.0"

[tasks]

[dependencies]
python = "3.13.*"

[pypi-dependencies]
foobar = { path = "../foobar-0.1.0-py3-none-any.whl" }

Keeps invalidating with the message:

..
 INFO pixi::lock_file::outdated: the dependencies of environment 'default' for platform osx-arm64 are out of date because 'foobar' expected this path /private/tmp/foobar-0.1.0-py3-none-any.whl but found /private/tmp/blinky/../foobar-0.1.0-py3-none-any.whl
...

This adds a test to satisfiability and fixes by normalizing in that case.

[Copilot]

Pull Request Overview

This PR fixes an issue with local directory satisfiability by normalizing relative paths before comparing them, and adds a test to validate the fix.

• Updated error messaging and path comparisons in pypi_satifisfies_requirement.
• Added a new test file to cover local-wheel scenarios.

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
tests/data/satisfiability/local-wheel/pixi.toml	Added test configuration for local wheel paths.
src/lock_file/satisfiability.rs	Updated path normalization and error message for LockedPyPIPathMismatch.

Comments suppressed due to low confidence (1)

src/lock_file/satisfiability.rs:918

• [nitpick] Consider renaming the variable 'locked_path' (after joining with 'project_root') to a more descriptive name (e.g., 'resolved_locked_path') to avoid confusion with the original 'locked_path'.

let locked_path = project_root.join(locked_path.to_path());