Currently, `cargo doc` fails on warnings for missing links to
`qcheck` and `radicle_git_ref_format`. This will enable the required
features to compile those modules in.
Change configuration of native CI to only deny warnings from the
compiler, but no all clippy lints.
Previously we ran "cargo clippy --all-targets --workspace -- --deny
clippy::all", which overrides the allows for specific clippy lints in
the source code. We don't want that.
Signed-off-by: Lars Wirzenius <liw@liw.fi>