ci: run quinn-udp fast-data-path tests

Author: thomaseizinger

.github/workflows/rust.yml

@@ -122,6 +122,8 @@ jobs:
       - uses: Swatinem/rust-cache@v2
       - run: cargo build --locked --all-targets
       - run: cargo test --locked
+      - run: cargo test --locked -p quinn-udp --features fast-apple-datapath
+        if: ${{ runner.os }} == "macOS"
       - run: cargo test --locked -- --ignored stress
       - run: cargo test --locked --manifest-path fuzz/Cargo.toml
         if: ${{ matrix.rust }} == "stable"