Add a test workflow

Author: orf

.github/workflows/test.yaml

@@ -0,0 +1,16 @@
+name: Test
+on:
+  push:
+  pull_request:
+
+jobs:
+  test:
+    name: test
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+      - uses: Swatinem/rust-cache@v2
+        with:
+          key: "test"
+      - run: cargo check