fix(deps): update dependency zod to v4

Author: renovate[bot]

package.json

@@ -52,7 +52,7 @@
     "react-iconify-icon-wrapper": "0.0.3",
     "sitemap": "8.0.0",
     "subtitle": "4.2.1",
-    "zod": "3.25.76",
+    "zod": "4.0.17",
     "zod-validation-error": "3.5.3"
   },
   "devDependencies": {