chore(package): update nyc to version 12.0.2

Closes #134

Author: greenkeeper[bot]

package.json

@@ -76,7 +76,7 @@
     "jest": "^22.0.0",
     "jsdom": "^11.0.0",
     "lint-staged": "^7.0.0",
-    "nyc": "^11.0.3",
+    "nyc": "^12.0.2",
     "prettier": "^1.5.3",
     "raf-throttle": "^2.0.2",
     "react": "^16.0.0",