build

docs: mention "jj file untrack" in Git compatibility list #184

Job	Run time
Build jj-lib without Git support	52s
cargo-deny (advisories)	40s
Check protos	35s
build (ubuntu-latest)	5m 9s
cargo-deny (bans licenses sources)	40s
build (macos-13)	6m 27s
Clippy check	2m 54s
Check that MkDocs can build the docs	13s
build (macos-14)	4m 18s
Check that MkDocs can build the docs with latest Python and uv	16s
build (windows-latest)	10m 54s
Check formatting	16s
build (ubuntu-latest, --all-features)	6m 13s
	39m 27s

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