ci: add lint workflow

Author: cakemanny

.github/workflows/test.yaml

@@ -0,0 +1,26 @@
+name: Build and Test
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  codestyle:
+    name: Codestyle
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+        with:
+          components: clippy, rustfmt
+      - uses: Swatinem/rust-cache@v2
+      - run: cargo check
+        env:
+          RUSTFLAGS: '-D unused'
+      - run: cargo clippy -- -D clippy::all
+      - run: cargo fmt --check