chore: update prettier version

Author: alexvictor

yarn.lock

@@ -1574,8 +1574,8 @@ preserve@^0.2.0:
   resolved "https://registry.yarnpkg.com/preserve/-/preserve-0.2.0.tgz#815ed1f6ebc65926f865b310c0713bcb3315ce4b"
 
 prettier@^1.6.1:
-  version "1.7.1"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.7.1.tgz#f674c52978e14ae7dffd7828e88cce07501d95dc"
+  version "1.7.4"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.7.4.tgz#5e8624ae9363c80f95ec644584ecdf55d74f93fa"
 
 process-nextick-args@~1.0.6:
   version "1.0.7"