chore(deps): update dependency zod to v4

Author: renovate[bot]

packages/svelte-ux/package.json

@@ -71,7 +71,7 @@
     "prism-themes": "^1.9.0",
     "prismjs": "^1.29.0",
     "sveld": "^0.22.1",
-    "zod": "^3.24.2"
+    "zod": "^4.0.0"
   },
   "peerDependencies": {
     "svelte": "^3.56.0 || ^4.0.0 || ^5.0.0"