chore(deps): update dependency @types/node to v11.15.20 (GoogleCloudPlatform#172)

Co-authored-by: Huy Pham <[email protected]>

Author: renovate-bot

package-lock.json

@@ -40,7 +40,7 @@
     "@types/express": "4.17.0",
     "@types/minimist": "1.2.0",
     "@types/mocha": "8.0.1",
-    "@types/node": "11.13.13",
+    "@types/node": "11.15.20",
     "@types/on-finished": "2.3.1",
     "@types/supertest": "2.0.10",
     "gts": "1.0.0",