add unstaged check in test workflow

Author: johnstcn

.github/workflows/go-test.yml

@@ -33,3 +33,8 @@ jobs:
         uses: golangci/golangci-lint-action@4afd733a84b1f43292c63897423277bb7f4313a9 # v8.0.0
         with:
           version: v2.1
+
+      - name: Check for unstaged changes
+        run: |
+          make gen
+          ./check_unstaged.sh