style: fix and enforce clippy linting

Author: danieleades

.github/workflows/CI.yml

@@ -16,3 +16,15 @@ jobs:
         with:
           components: rustfmt
       - run: cargo +nightly fmt --all --check
+
+  clippy:
+    name: lint
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+      - uses: dtolnay/rust-toolchain@nightly
+        with:
+          components: clippy
+      - uses: actions-rs-plus/clippy-check@v2
+        with:
+          args: --all --all-features --all-targets