chore(package): update nyc to version 10.2.0 (#23)

Author: greenkeeper[bot]

package.json

@@ -10,7 +10,7 @@
   "devDependencies": {
     "ava": "^0.18.2",
     "coveralls": "2.x",
-    "nyc": "10.1.2",
+    "nyc": "10.2.0",
     "standard": "8.6.0",
     "webpack": "^1.13.0"
   },