chore(package): update nyc to version 11.0.1

Author: greenkeeper[bot]

package.json

@@ -37,7 +37,7 @@
     "codeclimate-test-reporter": "^0.4.0",
     "coveralls": "^2.11.15",
     "esdoc": "^1.0.0-alpha.1",
-    "nyc": "^10.0.0"
+    "nyc": "^11.0.1"
   },
   "homepage": "http://aureooms.github.io/js-collections-chainmap/",
   "keywords": [