chore(deps): update dependency unbuild to v3

Author: renovate[bot]

package.json

@@ -131,7 +131,7 @@
     "supertest": "^6.3.3",
     "typescript": "^5.4.1-rc",
     "typescript-eslint": "^8.46.2",
-    "unbuild": "^2.0.0",
+    "unbuild": "^3.0.0",
     "vitest": "^1.3.0",
     "vitest-environment-miniflare": "^2.14.1"
   },