build

docs/git-comparison.md: update the Signed_commits bullet #12639

Job	Run time
Build jj-lib without Git support	46s
Check protos	43s
build (ubuntu-latest)	4m 22s
build (macos-14)	3m 20s
Check formatting	21s
build (windows-latest)	9m 39s
build (ubuntu-latest, --all-features)	5m 13s
cargo-deny (advisories)	23s
cargo-deny (bans licenses sources)	22s
Check that MkDocs can build the docs	23s
Check that MkDocs can build the docs with Poetry 1.8	28s
Clippy check	2m 38s
	28m 38s

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