build

cli: Make fix tools run from the repo root. #28

Job	Run time
Build jj-lib without Git support	45s
Check protos	26s
cargo-deny (advisories)	25s
build (ubuntu-latest)	5m 7s
cargo-deny (bans licenses sources)	25s
build (macos-13)	8m 58s
Clippy check	2m 40s
Check that MkDocs can build the docs	22s
build (macos-14)	4m 25s
build (windows-latest)	9m 8s
Check that MkDocs can build the docs with Poetry 1.8	23s
Check formatting	20s
build (ubuntu-latest, --all-features)	6m 6s
	39m 30s

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