chore(package): update @types/node to version 14.0.9

Closes #11

Author: greenkeeper[bot]

package.json

@@ -36,7 +36,7 @@
     "@types/chai": "^4.1.3",
     "@types/mocha": "^5.2.0",
     "@types/moment-timezone": "^0.5.5",
-    "@types/node": "^10.1.2",
+    "@types/node": "^14.0.9",
     "chai": "^4.1.2",
     "coveralls": "^3.0.1",
     "mocha": "^5.2.0",