chore(package): update nyc to version 14.0.0

Author: greenkeeper[bot]

package.json

@@ -72,7 +72,7 @@
     "istanbul": "^v1.1.0-alpha.1",
     "mocha": "^5.0.4",
     "mochawesome": "^3.0.2",
-    "nyc": "11.7.2",
+    "nyc": "14.0.0",
     "ts-node": "8.0.3",
     "tslint": "5.14.0",
     "typescript": "3.3.3333",