Add clippy to the CI

.github/workflows/ci.yml

@@ -31,6 +31,15 @@ jobs:
         run: rustup update stable
       - name: Run cargo fmt
         run: cargo fmt --all -- --check
+  clippy:
+    name: Clippy
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Update Rust
+        run: rustup update stable
+      - name: Run clippy
+        run: cargo +stable clippy --all-features
   cargo-deny:
     name: Check dependencies
     runs-on: ubuntu-latest