chore(deps): update devdependency unbuild to v3

Author: renovate[bot]

package.json

@@ -37,7 +37,7 @@
     "expect-type": "^0.17.3",
     "prettier": "^3.1.1",
     "typescript": "^5.3.3",
-    "unbuild": "^2.0.0",
+    "unbuild": "^3.4.1",
     "vitest": "^1.1.3"
   },
   "packageManager": "[email protected]"