fix: zod v4 peer deps (#798)

Author: theoludwig

zod/package.json

@@ -13,6 +13,6 @@
   "peerDependencies": {
     "react-hook-form": "^7.55.0",
     "@hookform/resolvers": "^2.0.0",
-    "zod": "^3.25.0"
+    "zod": "^3.25.0 || ^4.0.0"
   }
 }