chore: check if is/mod.ts and as/mod.ts are up-to-date

.github/workflows/test.yml

@@ -24,6 +24,10 @@ jobs:
         run: deno lint
       - name: Type check
         run: deno task check
+      - name: Gen check
+        run: |
+          deno task gen
+          git diff --exit-code
 
   test:
     runs-on: ubuntu-latest