build

nix: include `watchman` in dev shell #11992

Job	Run time
Build jj-lib without Git support	43s
build (ubuntu-latest)	3m 59s
Check that MkDocs can build the docs	23s
build (macos-14)	3m 17s
Check that MkDocs can build the docs with Poetry 1.8	27s
build (windows-latest)	8m 56s
Check formatting	16s
build (ubuntu-latest, --all-features)	4m 58s
cargo-deny (advisories)	23s
Check protos	27s
cargo-deny (bans licenses sources)	23s
Clippy check	2m 26s
	26m 38s

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