build

Add a --use-destination-message option to `jj squash` #10207

Job	Run time
Check protos	50s
build (ubuntu-latest)	4m 21s
build (macos-14)	3m 36s
Check that MkDocs can build the docs	35s
build (windows-latest)	10m 19s
build (ubuntu-latest, --all-features)	5m 23s
Check that MkDocs can build the docs with Poetry 1.3.2	45s
Check formatting	17s
Clippy check	2m 25s
cargo-deny (advisories)	24s
cargo-deny (bans licenses sources)	25s
	29m 20s

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