chore(deps): update devdependency unbuild to v3

Author: renovate[bot]

package.json

@@ -43,7 +43,7 @@
     "jiti": "^2.4.2",
     "prettier": "^3.4.2",
     "typescript": "^5.7.2",
-    "unbuild": "^2.0.0"
+    "unbuild": "^3.2.0"
   },
   "peerDependencies": {
     "eslint": "*",