fix(package): update @types/node to version 13.1.0

Author: greenkeeper[bot]

demo/package.json

@@ -7,7 +7,7 @@
 		"@testing-library/react": "^9.3.2",
 		"@testing-library/user-event": "^8.0.0",
 		"@types/jest": "^24.0.0",
-		"@types/node": "^12.0.0",
+		"@types/node": "^13.1.0",
 		"@types/react": "^16.9.0",
 		"@types/react-dom": "^16.9.0",
 		"prettier": "^1.19.1",