chore(package): update @types/node to version 13.13.2

Closes #24

Author: greenkeeper[bot]

package.json

@@ -79,7 +79,7 @@
   },
   "devDependencies": {
     "@types/jest": "^23.1.3",
-    "@types/node": "^11.9.0",
+    "@types/node": "^13.13.2",
     "colors": "^1.1.2",
     "commitizen": "^2.9.6",
     "coveralls": "^3.0.0",