feat: add a test gh action

.github/workflows/test.yml

@@ -0,0 +1,22 @@
+on: push
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v2
+
+      - name: Set up rust
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Cache dependencies
+        uses: Swatinem/rust-cache@v2
+
+      - name: Install dependencies
+        run: cargo build
+        working-directory: utils
+
+      - name: Run tests
+        run: cargo test
+        working-directory: utils