chore(package): update nyc to version 10.2.0

https://greenkeeper.io/

Author: greenkeeperio-bot

package.json

@@ -38,7 +38,7 @@
     "jsdoc-to-markdown": "^3.0.0",
     "markdown-doctest": "^0.9.1",
     "rollup": "^0.41.6",
-    "nyc": "^10.1.2"
+    "nyc": "^10.2.0"
   },
   "contributors": [
     {