chore(package): update prettier to version 2.0.3

Closes #324

Author: greenkeeper[bot]

package.json

@@ -97,7 +97,7 @@
     "jest-config": "^23.6.0",
     "lint-staged": "^8.0.0",
     "lodash.camelcase": "^4.3.0",
-    "prettier": "^1.14.3",
+    "prettier": "^2.0.3",
     "prompt": "^1.0.0",
     "replace-in-file": "^3.4.2",
     "rimraf": "^2.6.2",