run cargo test in github actions

.github/workflows/cargo_test.yml

@@ -0,0 +1,19 @@
+name: Build examples
+
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Check rust version
+        run: rustup show
+      - name: Run tests
+        run: cargo test