fix: update zod

Author: johnf

package.json

@@ -26,7 +26,7 @@
     "fastify-cli": "^7.4.0",
     "fastify-plugin": "^5.0.0",
     "fastify-type-provider-zod": "^5.0.3",
-    "zod": "^4.1.2"
+    "zod": "^4.1.3"
   },
   "devDependencies": {
     "@biomejs/biome": "^2.2.2",