chore: adjust node version

Author: nekomeowww

package-lock.json

@@ -12,7 +12,7 @@
     "url": "git+https://github.com/modelcontextprotocol/typescript-sdk.git"
   },
   "engines": {
-    "node": ">=22.12.0"
+    "node": ">=18"
   },
   "keywords": [
     "modelcontextprotocol",