build(deps-dev): bump rolldown from 1.0.0-beta.60 to 1.0.0-rc.4 (#82)

Bumps [rolldown](https://github.com/rolldown/rolldown/tree/HEAD/packages/rolldown) from 1.0.0-beta.60 to 1.0.0-rc.4.
- [Release notes](https://github.com/rolldown/rolldown/releases)
- [Changelog](https://github.com/rolldown/rolldown/blob/main/CHANGELOG.md)
- [Commits](https://github.com/rolldown/rolldown/commits/v1.0.0-rc.4/packages/rolldown)

---
updated-dependencies:
- dependency-name: rolldown
  dependency-version: 1.0.0-rc.4
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]

bun.lock

@@ -19,7 +19,7 @@
     "@turbowarp/packager": "^3.11.0",
     "@types/bun": "latest",
     "@typescript/native-preview": "^7.0.0-dev.20260127.1",
-    "rolldown": "1.0.0-beta.60",
+    "rolldown": "1.0.0-rc.4",
     "tsdown": "^0.20.0-beta.4"
   },
   "peerDependencies": {