chore(deps): update devdependency unbuild to v3

Author: renovate[bot]

package.json

@@ -72,7 +72,7 @@
     "rollup": "4.29.1",
     "simple-git-hooks": "2.11.1",
     "typescript": "5.7.2",
-    "unbuild": "2.0.0",
+    "unbuild": "3.2.0",
     "vite": "6.0.7",
     "vitest": "2.1.8"
   },