feat: golang CI test (#265)

Author: mkysel

.github/workflows/test.yml

@@ -29,3 +29,19 @@ jobs:
         run: ./gradlew build
       - name: Gradle Run Tests
         run: ./gradlew kotlin:test
+  golang:
+    name: Test (Golang)
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout project sources
+        uses: actions/checkout@v4
+      - uses: actions/checkout@v4
+        with:
+          repository: 'xmtp/xmtpd'
+          path: xmtpd
+      - uses: actions/setup-go@v5
+      - name: Execute xmtpd protos builder
+        run: |
+          cd xmtpd
+          go tool -modfile=tools/go.mod buf generate ../proto/
+          go build ./...