chore(package): update prettier-standard to version 9.0.0

Author: greenkeeper[bot]

package.json

@@ -12,7 +12,7 @@
     "semver": "^5.4.1"
   },
   "devDependencies": {
-    "prettier-standard": "^8.0.1",
+    "prettier-standard": "^9.0.0",
     "standard": "^12.0.0",
     "tape": "^4.8.0"
   }