CI: build & upload Go project

.github/workflows/go.yml

@@ -0,0 +1,30 @@
+name: Go
+
+on:
+  push:
+    branches: [ "v2" ]
+  pull_request:
+    branches: [ "v2" ]
+
+jobs:
+
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Set up Go
+      uses: actions/setup-go@v4
+      with:
+        go-version: '1.20'
+
+    - name: Build
+      run: go build -v ./.
+
+    - name: Upload a Build Artifact
+      uses: actions/upload-artifact@v3.1.3
+      with:
+        # Artifact name
+        name: "catApi"
+        # A file, directory or wildcard pattern that describes what to upload
+        path: "catApi"