chore(package): update nyc to version 10.3.0

https://greenkeeper.io/

Author: greenkeeper[bot]

package.json

@@ -88,7 +88,7 @@
     "jsdom": "^9.8.0",
     "jsdom-global": "^2.1.0",
     "mocha": "^3.2.0",
-    "nyc": "^10.0.0",
+    "nyc": "^10.3.0",
     "react": "^15.3.2",
     "react-addons-test-utils": "^15.3.2",
     "react-dom": "^15.3.2",