fix(deps): update dependency zod to v4

Author: renovate[bot]

package.json

@@ -181,7 +181,7 @@
         "cookie": "^1.0.2",
         "hono": "^4.9.7",
         "openapi-types": "^12.1.3",
-        "zod": "^3.25.76"
+        "zod": "^4.1.12"
     },
     "devDependencies": {
         "@commitlint/cli": "^19.8.1",
@@ -208,7 +208,7 @@
         "@sinclair/typebox": "^0.34.33",
         "hono": "^4.7.7",
         "openapi-types": "^12.1.3",
-        "zod": "^3.24.3"
+        "zod": "^4.1.12"
     },
     "packageManager": "[email protected]"
 }