chore(package): update @types/node to version 14.0.0

Closes #6

Author: greenkeeper[bot]

package.json

@@ -36,7 +36,7 @@
   "author": "Marina Korzunova ([email protected])",
   "license": "MIT",
   "devDependencies": {
-    "@types/node": "10.5.2",
+    "@types/node": "14.0.0",
     "codecov": "^3.0.2",
     "flow-bin": "^0.76.0",
     "react": "^16.7.0-alpha.2",