Merge pull request #1759 from vitejs/renovate/rolldown-1.x

chore(deps): update dependency rolldown to v1.0.0-rc.9

Author: mrcego

package.json

@@ -73,7 +73,7 @@
     "prettier": "3.8.1",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
-    "rolldown": "1.0.0-rc.8",
+    "rolldown": "1.0.0-rc.9",
     "tsx": "^4.21.0",
     "typescript": "^5.9.2",
     "typescript-eslint": "^8.54.0",