Add workflow for clippy

.github/workflows/clippy.yaml

@@ -0,0 +1,36 @@
+name: Clippy
+
+on:
+  push:
+    branches: [ staging, trying, master ]
+  pull_request:
+    branches: [ master ]
+
+defaults:
+  run:
+    shell: bash
+
+env:
+  CLIPPY_PARAMS: -W clippy::all -W clippy::pedantic -W clippy::nursery -W clippy::cargo
+
+jobs:
+  clippy:
+    name: Clippy
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        cargo_flags:
+          - "--no-default-features"
+          - "--all-features"
+    steps:
+      - name: Checkout source code
+        uses: actions/checkout@v3
+
+      - name: Install Rust toolchain
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          toolchain: stable
+          components: clippy
+
+      - name: Run clippy
+        run: cargo clippy --all ${{ matrix.cargo_flags }} -- -D warnings