chore(package): update snazzy to version 8.0.0

Author: greenkeeper[bot]

package.json

@@ -34,7 +34,7 @@
     "istanbul": "^0.4.3",
     "safe-stable-stringify": "^1.0.0",
     "mocha": "^5.0.0",
-    "snazzy": "^7.0.0",
+    "snazzy": "^8.0.0",
     "standard": "^11.0.0"
   }
 }