ci: Lint code with cargo clippy

Author: ravenexp

.github/workflows/rust.yml

@@ -28,3 +28,10 @@ jobs:
     - uses: actions/checkout@v3
     - name: Run cargo fmt
       run: cargo fmt -- --check
+  clippy:
+    name: Clippy lints
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - name: Run cargo clippy
+      run: cargo clippy --tests -- --deny warnings