Check for changes in generated files in pipeline

Author: Kate Osborn

.github/workflows/ci.yml

@@ -49,6 +49,9 @@ jobs:
       - name: Check if go.mod and go.sum are up to date
         run: go mod tidy && git diff --exit-code -- go.mod go.sum
 
+      - name: Check if generated files are up to date
+        run: make generate && git diff --exit-code
+
   unit-tests:
     name: Unit Tests
     runs-on: ubuntu-22.04