ci: add check workflow

Author: Mivik

.github/workflows/check.yml

@@ -0,0 +1,67 @@
+name: Check
+
+on:
+  push: {}
+  pull_request: {}
+
+jobs:
+  clippy:
+    name: Clippy
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+
+    strategy:
+      matrix:
+        include:
+          - target: aarch64-linux-android
+          - target: aarch64-apple-ios
+          - target: aarch64-apple-darwin
+          - target: x86_64-pc-windows-gnu
+          - target: x86_64-unknown-linux-gnu
+            default: true
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Rust toolchain
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Add target
+        if: matrix.target != 'x86_64-unknown-linux-gnu'
+        run: rustup target add ${{ matrix.target }}
+
+      - name: Cache
+        uses: Swatinem/rust-cache@v2
+        with:
+          cache-on-failure: "true"
+          cache-all-crates: "true"
+
+      - name: Clippy
+        run: |
+          if [ "${{ matrix.target }}" = "x86_64-unknown-linux-gnu" ]; then
+            cargo clippy --all-targets --all-features -- -D warnings
+          else
+            cargo clippy --all-targets --all-features --target ${{ matrix.target }} -- -D warnings
+          fi
+
+  fmt:
+    name: Format
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Rust toolchain
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Cache
+        uses: Swatinem/rust-cache@v2
+        with:
+          cache-on-failure: "true"
+          cache-all-crates: "true"
+
+      - name: Format
+        run: cargo fmt --all --check