chore: upgrade nyc depns

Author: mingchuno

package.json

@@ -43,7 +43,7 @@
     "lint-staged": "^8.2.1",
     "mocha": "^5.0.1",
     "mongoose": "^5.2.0",
-    "nyc": "^11.2.1",
+    "nyc": "^14.1.1",
     "prettier": "^1.18.2"
   },
   "scripts": {