chore(package): update stylelint to version 9.5.0

Closes #13

Author: greenkeeper[bot]

package.json

@@ -64,7 +64,7 @@
     "nwb-sass": "0.8.4",
     "prettier": "1.11.1",
     "react-styleguidist": "6.2.7",
-    "stylelint": "9.1.3",
+    "stylelint": "9.5.0",
     "stylelint-scss": "2.5.0"
   },
   "author": "",