build

cargo: enable zlib-ng and fast sha1 in gix #153

Job	Run time
cargo-deny (advisories)	27s
Check protos	30s
cargo-deny (bans licenses sources)	23s
Build jj-lib without Git support	45s
build (ubuntu-latest)	5m 6s
build (macos-13)	8m 59s
Clippy check	2m 30s
build (macos-14)	4m 59s
Check that MkDocs can build the docs	38s
Check that MkDocs can build the docs with latest Python and uv	17s
build (windows-latest)	9m 21s
build (ubuntu-latest, --all-features)	6m 10s
Check formatting	20s
	40m 25s

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