chore: add Go module publishing to release workflow

Author: nicolaiarocci

.github/workflows/release.yml

@@ -15,6 +15,22 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: '1.18'
+
+      - name: Verify Go module
+        run: |
+          go mod tidy
+          go mod verify
+          go list -m
+
+      - name: Publish Go module
+        run: |
+          # Request Go proxy to fetch the module
+          GOPROXY=https://proxy.golang.org GO111MODULE=on go list -m github.com/invoicetronic/go-sdk@${{ github.ref_name }}
+
       - name: Create Release
         uses: softprops/action-gh-release@v2
         with: