adding the missing peer depency

Author: dapeduu

package.json

@@ -49,5 +49,8 @@
     "gulp": "^4.0.2",
     "prettier": "^3.3.2",
     "typescript": "^5.5.3"
+  },
+  "peerDependencies": {
+    "n8n-workflow": "*"
   }
 }