feat: support editable installs for `pixi build` #257

Job	Run time
determine changes	6s
pre-commit	46s
Cargo Machete	1m 1s
build binary \| macos aarch64	8m 37s
build binary \| windows aarch64	3m 39s
build binary \| linux x86_64	4m 55s
build binary \| macos x86_64	0s
build binary \| windows x86_64	3m 52s
cargo test \| ubuntu	4m 27s
cargo test \| macos aarch64	5m 38s
cargo test \| macos x86_64	0s
cargo test \| windows	7m 25s
cargo rustdoc \| ubuntu	59s
cargo fmt \| ubuntu	15s
cargo clippy \| ubuntu	45s
pytest integration \| linux x86_64	1m 5s
test wheel installation \| linux x86_64 / Test Installation of Common Wheels \| linux-x86_64	1m 58s
pytest integration \| windows x86_64	5m 48s
test wheel installation \| windows x86_64 / Test Installation of Common Wheels \| windows-x86_64	3m 19s
pytest integration \| macos aarch64	2m 56s
test wheel installation \| macos aarch64 / Test Installation of Common Wheels \| macos-aarch64	1m 33s
	59m 4s

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