chore(package): update standard to version 9.0.2 (#5)

Author: greenkeeper[bot]

package.json

@@ -40,7 +40,7 @@
     "mocha": "^3.1.2",
     "nock": "^9.0.2",
     "nyc": "^10.0.0",
-    "standard": "^8.4.0",
+    "standard": "^9.0.2",
     "standard-version": "^3.0.0"
   },
   "files": [