chore(package): update eslint-config-prettier to version 6.3.0

Closes #65

Author: greenkeeper[bot]

package.json

@@ -62,7 +62,7 @@
     "del-cli": "^1.0.0",
     "eslint": "^4.2.0",
     "eslint-config-airbnb-base": "^12.0.2",
-    "eslint-config-prettier": "^2.3.0",
+    "eslint-config-prettier": "^6.3.0",
     "eslint-plugin-import": "^2.3.0",
     "eslint-plugin-prettier": "^2.1.2",
     "graphql-tools": "^2.5.0",