sparse: parse/print workspace-relative paths, extract more subcommands #10056

Job	Run time
Check protos	31s
cargo-deny (advisories)	28s
build (ubuntu-latest)	3m 30s
cargo-deny (bans licenses sources)	24s
build (macos-14)	3m 8s
Clippy check	2m 25s
build (windows-latest)	6m 58s
Check that MkDocs can build the docs	22s
Check that MkDocs can build the docs with Poetry 1.3.2	47s
build (ubuntu-latest, --all-features)	4m 29s
Check formatting	16s
	23m 18s

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