chore(deps): update dependency @types/node to v22

Author: renovate-bot

gax/package.json

@@ -28,7 +28,7 @@
     "@babel/plugin-proposal-private-methods": "^7.18.6",
     "@types/mocha": "^9.0.0",
     "@types/ncp": "^2.0.1",
-    "@types/node": "^20.5.0",
+    "@types/node": "^22.0.0",
     "@types/node-fetch": "^2.6.11",
     "@types/object-hash": "^3.0.0",
     "@types/proxyquire": "^1.3.28",