build

cli: add better error message when immutable_heads() cannot be resolved #10153

Job	Run time
Check protos	37s
build (ubuntu-latest)	3m 31s
Check that MkDocs can build the docs	23s
Check that MkDocs can build the docs with Poetry 1.3.2	38s
build (macos-14)	2m 48s
build (windows-latest)	7m 35s
Check formatting	14s
build (ubuntu-latest, --all-features)	4m 22s
cargo-deny (advisories)	26s
Clippy check	2m 23s
cargo-deny (bans licenses sources)	24s
	23m 21s

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