chore(deps): update dependency zod to v4

Author: homarr-renovate[bot]

package.json

@@ -62,7 +62,7 @@
     "eslint-plugin-unused-imports": "^4.1.4",
     "prettier": "^3.2.4",
     "typescript": "^5.8.2",
-    "zod": "^3.25.28"
+    "zod": "^4.0.14"
   },
   "peerDependencies": {
     "@docusaurus/theme-common": "^3.8.1",