use merge-multiple for download-artifact

Author: acheronfail

.github/workflows/ci.yml

@@ -88,6 +88,7 @@ jobs:
         uses: actions/download-artifact@v4
         with:
           path: artifact
+          merge-multiple: true
       - run: sudo apt-get update && sudo apt-get install -y nodejs
       - name: Generate Summary
         run: |