fix(deps): update dependency zod to v4.1.8

Author: renovate[bot]

package.json

@@ -41,7 +41,7 @@
     "react-hook-form": "7.62.0",
     "react-icons": "5.5.0",
     "unzipper": "0.12.3",
-    "zod": "4.1.5"
+    "zod": "4.1.8"
   },
   "devDependencies": {
     "@biomejs/biome": "2.2.4",