Check git status after go mod tidy on CI (#1614)

.github/workflows/test-infrastructure-files.yml

@@ -127,6 +127,9 @@ jobs:
       - name: Install modules
         run: go mod tidy
 
+      - name: check git status
+        run: git --no-pager diff --exit-code
+
       - name: Build management binary
         working-directory: management
         run: CGO_ENABLED=1 go build -o netbird-mgmt main.go