build: bump prettier from 1.12.0 to 1.12.1

Bumps [prettier](https://github.com/prettier/prettier) from 1.12.0 to 1.12.1.
- [Release notes](https://github.com/prettier/prettier/releases)
- [Changelog](https://github.com/prettier/prettier/blob/master/CHANGELOG.md)
- [Commits](prettier/prettier@1.12.0...1.12.1)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot-support

yarn.lock

@@ -4398,8 +4398,8 @@ preserve@^0.2.0:
   resolved "https://registry.yarnpkg.com/preserve/-/preserve-0.2.0.tgz#815ed1f6ebc65926f865b310c0713bcb3315ce4b"
 
 prettier@^1.11.1:
-  version "1.12.0"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.12.0.tgz#d26fc5894b9230de97629b39cae225b503724ce8"
+  version "1.12.1"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.12.1.tgz#c1ad20e803e7749faf905a409d2367e06bbe7325"
 
 pretty-quick@^1.4.1:
   version "1.4.1"