Update @types/node to the latest version 🚀 (#2)

* chore(package): update @types/node to version 9.3.0

* chore(package): update lockfile

https://npm.im/greenkeeper-lockfile

Author: greenkeeper[bot]

package.json

@@ -36,7 +36,7 @@
     "source-map": "^0.6.1"
   },
   "devDependencies": {
-    "@types/node": "^8.5.2",
+    "@types/node": "^9.3.0",
     "@types/react": "^16.0.31",
     "@types/react-dom": "^16.0.3",
     "prettier": "^1.9.2",

yarn.lock

@@ -2,10 +2,14 @@
 # yarn lockfile v1
 
 
-"@types/node@*", "@types/node@^8.5.2":
+"@types/node@*":
   version "8.5.2"
   resolved "https://registry.yarnpkg.com/@types/node/-/node-8.5.2.tgz#83b8103fa9a2c2e83d78f701a9aa7c9539739aa5"
 
+"@types/node@9.3.0":
+  version "9.3.0"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-9.3.0.tgz#3a129cda7c4e5df2409702626892cb4b96546dd5"
+
 "@types/react-dom@^16.0.3":
   version "16.0.3"
   resolved "https://registry.yarnpkg.com/@types/react-dom/-/react-dom-16.0.3.tgz#8accad7eabdab4cca3e1a56f5ccb57de2da0ff64"