chore(deps): update dependency prettier to v1.15.1

Author: renovate-bot

package.json

@@ -61,7 +61,7 @@
     "husky": "0.14.3",
     "jest": "22.4.3",
     "lint-staged": "7.0.0",
-    "prettier": "1.11.1",
+    "prettier": "1.15.1",
     "react": "16.2.0",
     "react-dom": "16.2.0",
     "react-test-renderer": "16.2.0"

yarn.lock

@@ -7860,9 +7860,9 @@ preserve@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/preserve/-/preserve-0.2.0.tgz#815ed1f6ebc65926f865b310c0713bcb3315ce4b"
 
-prettier@1.11.1:
-  version "1.11.1"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.11.1.tgz#61e43fc4cd44e68f2b0dfc2c38cd4bb0fccdcc75"
+prettier@1.15.1:
+  version "1.15.1"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.15.1.tgz#06c67106afb1b40e74b002353b2079cc7e0e67bf"
 
 pretty-error@^2.0.2:
   version "2.1.1"