chore: move zod to peerDependencies

Author: yuanliu147

package-lock.json

@@ -60,7 +60,6 @@
     "express-rate-limit": "^7.5.0",
     "pkce-challenge": "^5.0.0",
     "raw-body": "^3.0.0",
-    "zod": "^3.23.8",
     "zod-to-json-schema": "^3.24.1"
   },
   "devDependencies": {
@@ -87,5 +86,8 @@
   },
   "resolutions": {
     "strip-ansi": "6.0.1"
+  },
+  "peerDependencies": {
+    "zod": "^3.23.8"
   }
 }