chore(package): update eslint-config-prettier to version 4.2.0

Closes #34

Author: greenkeeper[bot]

package.json

@@ -51,7 +51,7 @@
     "del-cli": "^1.1.0",
     "eslint": "^4.13.1",
     "eslint-config-airbnb-base": "^12.1.0",
-    "eslint-config-prettier": "^2.9.0",
+    "eslint-config-prettier": "^4.2.0",
     "eslint-plugin-import": "^2.8.0",
     "eslint-plugin-prettier": "^2.4.0",
     "globby": "^7.1.1",