chore(package): update @types/node to version 12.0.0

Author: greenkeeper[bot]

package.json

@@ -29,7 +29,7 @@
     "@types/babel__core": "^7.1.1",
     "@types/babel__template": "^7.0.2",
     "@types/jest": "^24.0.5",
-    "@types/node": "^11.9.4",
+    "@types/node": "^12.0.0",
     "@types/react": "^16.8.2",
     "@types/react-dom": "^16.8.0",
     "commitizen": "^3.0.7",