build

commands: add `--interactive` flag to `jj split` #6920

Job	Run time
build (ubuntu-latest)	8m 6s
Check protos	41s
cargo-deny (advisories)	27s
build (macos-13)	4m 41s
cargo-deny (bans licenses sources)	37s
build (windows-latest)	11m 37s
Clippy check	3m 18s
build (ubuntu-latest, --all-features)	6m 31s
Check that MkDocs can build the docs	30s
Check formatting	19s
	36m 47s

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