build(deps-dev): bump prettier from 2.0.5 to 2.1.2

Bumps [prettier](https://github.com/prettier/prettier) from 2.0.5 to 2.1.2.
- [Release notes](https://github.com/prettier/prettier/releases)
- [Changelog](https://github.com/prettier/prettier/blob/master/CHANGELOG.md)
- [Commits](prettier/prettier@2.0.5...2.1.2)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Author: dependabot-preview[bot]

package.json

@@ -28,7 +28,7 @@
     "eslint-plugin-prettier": "^3.0.1",
     "jest": "^26.0.1",
     "kind-of": "^6.0.3",
-    "prettier": "2.0.5",
+    "prettier": "2.1.2",
     "serialize-javascript": "^5.0.1",
     "set-value": "^3.0.2",
     "vuepress": "^1.0.1"

yarn.lock

@@ -8077,10 +8077,10 @@ prettier-linter-helpers@^1.0.0:
   dependencies:
     fast-diff "^1.1.2"
 
-prettier@2.0.5:
-  version "2.0.5"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.0.5.tgz#d6d56282455243f2f92cc1716692c08aa31522d4"
-  integrity sha512-7PtVymN48hGcO4fGjybyBSIWDsLU4H4XlvOHfq91pz9kkGlonzwTfYkaIEwiRg/dAJF9YlbsduBAgtYLi+8cFg==
+prettier@2.1.2:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.1.2.tgz#3050700dae2e4c8b67c4c3f666cdb8af405e1ce5"
+  integrity sha512-16c7K+x4qVlJg9rEbXl7HEGmQyZlG4R9AgP+oHKRMsMsuk8s+ATStlf1NpDqyBI1HpVyfjLOeMhH2LvuNvV5Vg==
 
 prettier@^1.18.2:
   version "1.19.1"