Add GitHub actions workflow

This is necessary for the completeness of the example.

.github/workflows/go.yml

@@ -0,0 +1,35 @@
+name: Go
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+  test:
+    name: test
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Set up Go
+        uses: actions/setup-go@v4
+        with:
+          go-version: '1.20'
+          cache: false
+
+      - name: Check that all packages are compiling
+        run: make build
+
+      - name: Check that all integration tests are labeled
+        run: make test-short
+
+      - name: Setup test environment
+        run: make test-env-up
+
+      - name: Run all test
+        run: make test
+
+      - name: Teardown test environment
+        run: make test-env-up