do not deny clippy lints

it should still warn, but not deny i.e. error out on lints

Author: hellow554

.github/workflows/ci.yml

@@ -28,7 +28,7 @@ jobs:
       - run: cargo check --no-default-features --features "use_alloc"
       - run: cargo test
       - run: RUSTDOCFLAGS="-Dwarnings" cargo doc --all-features
-      - run: cargo clippy --all -- -Dwarnings
+      - run: cargo clippy --all
 
   # https://github.com/rust-lang/crater/blob/9ab6f9697c901c4a44025cf0a39b73ad5b37d198/.github/workflows/bors.yml#L125-L149
   end-success: