build

Enforce selected clippy lints, and small style fixes #14684

Job	Run time
Check protos	28s
Build jj-lib without Git support	46s
build (ubuntu-latest)	4m 20s
build (macos-13)	8m 21s
Clippy check	2m 44s
build (macos-14)	3m 58s
cargo-deny (advisories)	25s
build (windows-latest)	9m 38s
cargo-deny (bans licenses sources)	21s
build (ubuntu-latest, --all-features)	5m 19s
Check that MkDocs can build the docs	19s
Check that MkDocs can build the docs with Poetry 1.8	19s
Check formatting	16s
	37m 14s

Provide feedback