chore: check generated files (#2582)

Author: ldez

.github/workflows/pr.yml

@@ -39,6 +39,11 @@ jobs:
           git diff --exit-code go.mod
           git diff --exit-code go.sum
 
+      - name: Generate and Check generated elements
+        run: |
+          make generate-dns
+          git diff --exit-code
+
       # https://golangci-lint.run/usage/install#other-ci
       - name: Install golangci-lint ${{ env.GOLANGCI_LINT_VERSION }}
         run: |