chore(package): update standard to version 13.0.2

Closes #54

Author: greenkeeper[bot]

package.json

@@ -35,7 +35,7 @@
     "fastify": "^2.6.0",
     "pg": "*",
     "pg-native": "^3.0.0",
-    "standard": "^12.0.1",
+    "standard": "^13.0.2",
     "tap": "^12.7.0"
   },
   "peerDependencies": {