chore(deps): update dependency nyc to v14.1.1 (#353)

Author: renovate[bot]

package.json

@@ -65,7 +65,7 @@
     "mocha": "6.1.4",
     "mock-git": "2.0.0",
     "mockery": "2.1.0",
-    "nyc": "14.1.0",
+    "nyc": "14.1.1",
     "shelljs": "0.8.3"
   }
 }