ci: add Clippy check workflow

.github/actions/rust-info/action.yml

@@ -0,0 +1,17 @@
+# yaml-language-server: $schema=https://json.schemastore.org/github-action.json
+
+name: rust info
+description: get rust info
+
+outputs:
+  host:
+    description: host "x86_64-unknown-linux-gnu"
+    value: ${{steps.rustc.outputs.host}}
+
+runs:
+  using: composite
+  steps:
+    - id: rustc
+      run: |
+        echo "host=$(rustc -vV | awk '/host/ { print $2 }')" >> $GITHUB_OUTPUT
+      shell: bash

.github/workflows/clippy-check.yml

@@ -0,0 +1,27 @@
+name: Clippy check
+
+on:
+  push:
+    branches: ["**"]
+
+env:
+  RUSTFLAGS: "-Dwarnings"
+
+permissions: {}
+
+jobs:
+  clippy_check:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
+      - uses: dtolnay/rust-toolchain@be73d7920c329f220ce78e0234b8f96b7ae60248 # master
+        with:
+          toolchain: stable
+          components: clippy
+      - id: rustc
+        uses: ./.github/actions/rust-info
+      - uses: Swatinem/rust-cache@23bce251a8cd2ffc3c1075eaa2367cf899916d84 # v2.7.3
+        with:
+          key: ${{ steps.rustc.outputs.host }}
+      - name: Run Clippy
+        run: cargo clippy --all-targets --all-features