ci: add attw step for non main branches

Author: velut

.github/workflows/not-main.yml

@@ -38,5 +38,8 @@ jobs:
       - name: Build
         run: pnpm build
 
+      - name: Are the types wrong
+        run: pnpm attw
+
       - name: CodeCov
         uses: codecov/codecov-action@v4.0.1