Actually deny clippy warnings.

Author: Dirbaio

.github/workflows/clippy.yml

@@ -17,6 +17,4 @@ jobs:
           toolchain: nightly-2022-09-05  
           override: true
           components: clippy
-      - uses: actions-rs/clippy-check@v1
-        with:
-          token: ${{ secrets.GITHUB_TOKEN }}
+      - run: cargo clippy --deny-warnings