BLD: Disable building docs for dependencies

Author: threecgreen

scripts/lint.sh

@@ -5,4 +5,4 @@ cargo --version
 cargo clippy --all-features -- --deny warnings
 # `cargo doc` does not have a `--deny warnings` flag like clippy, workaround from:
 # https://github.com/rust-lang/cargo/issues/8424#issuecomment-1070988443
-RUSTDOCFLAGS='--deny warnings' cargo doc --all-features
+RUSTDOCFLAGS='--deny warnings' cargo doc --all-features --no-deps