build

describe: warn user of limitations of describing multiple commits interface #12967

Job	Run time
Build jj-lib without Git support	54s
build (ubuntu-latest)	4m 37s
cargo-deny (advisories)	24s
build (macos-14)	3m 21s
cargo-deny (bans licenses sources)	22s
build (windows-latest)	9m 14s
Check protos	25s
build (ubuntu-latest, --all-features)	5m 26s
Clippy check	2m 22s
Check that MkDocs can build the docs	24s
Check that MkDocs can build the docs with Poetry 1.8	22s
Check formatting	17s
	28m 8s

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