build

revsets.md: document the `all:` prefix #10631

Job	Run time
build (ubuntu-latest)	4m 19s
Check protos	33s
build (macos-14)	3m 7s
cargo-deny (advisories)	23s
cargo-deny (bans licenses sources)	25s
Clippy check	2m 17s
build (windows-latest)	8m 37s
Check that MkDocs can build the docs	25s
build (ubuntu-latest, --all-features)	5m 12s
Check that MkDocs can build the docs with Poetry 1.3.2	29s
Check formatting	16s
	26m 3s

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