chore(deps): update devdependency unbuild to v3 (#126)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package.json

@@ -40,7 +40,7 @@
     "changelogen": "^0.5.7",
     "eslint": "^9.16.0",
     "typescript": "^5.7.2",
-    "unbuild": "^2.0.0",
+    "unbuild": "^3.0.0",
     "vite": "^6.0.3",
     "vitest": "2.1.8",
     "vue": "3.5.13",