build

cli: Refactor out `get_fetch_remotes` into git_util.rs #16597

Job	Run time
build (ubuntu-latest)	5m 3s
build (macos-13)	6m 4s
build (macos-14)	4m 44s
build (windows-latest)	9m 27s
build (ubuntu-latest, --all-features)	6m 4s
Build jj-lib without Git support	48s
Check protos	24s
cargo-deny (advisories)	22s
Check that MkDocs can build the docs	10s
cargo-deny (bans licenses sources)	26s
Check that MkDocs can build the docs with latest Python and uv	20s
Check formatting	18s
Clippy check	2m 36s
	36m 46s

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