cli: branch: add "move" command that can update branches by revset or name #11785

Job	Run time
build (ubuntu-latest)	4m 5s
Build jj-lib without Git support	45s
build (macos-14)	3m 27s
cargo-deny (advisories)	22s
build (windows-latest)	8m 59s
Check protos	30s
cargo-deny (bans licenses sources)	24s
build (ubuntu-latest, --all-features)	4m 59s
Clippy check	2m 26s
Check that MkDocs can build the docs	26s
Check that MkDocs can build the docs with Poetry 1.8	26s
Check formatting	16s
	27m 5s

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