chore(deps): update dependency rolldown to v1.0.0-rc.18

Author: renovate[bot]

packages/web/package.json

@@ -113,7 +113,7 @@
     "custom-element-vs-code-integration": "1.5.0",
     "invokers-polyfill": "1.0.3",
     "rimraf": "6.1.3",
-    "rolldown": "1.0.0-rc.13",
+    "rolldown": "1.0.0-rc.18",
     "tsdown": "0.21.10",
     "vite": "7.3.2",
     "vitest": "4.1.4"