chore: update node version (#3735)

Author: subfuzion

package.json

@@ -4,7 +4,7 @@
   "license": "Apache-2.0",
   "author": "Google Inc.",
   "engines": {
-    "node": ">=16.0.0"
+    "node": ">=18.0.0"
   },
   "repository": {
     "type": "git",