Bump prettier from 1.19.1 to 2.0.2

Bumps [prettier](https://github.com/prettier/prettier) from 1.19.1 to 2.0.2.
- [Release notes](https://github.com/prettier/prettier/releases)
- [Changelog](https://github.com/prettier/prettier/blob/master/CHANGELOG.md)
- [Commits](https://github.com/prettier/prettier/compare/1.19.1...2.0.2)

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

package.json

@@ -80,7 +80,7 @@
     "jest": "^25.1.0",
     "jest-worker": "^25.1.0",
     "lodash": "^4.17.14",
-    "prettier": "^1.17.1",
+    "prettier": "^2.0.2",
     "ts-jest": "^25.2.0",
     "typedoc": "^0.17.3"
   }

yarn.lock

@@ -3481,10 +3481,10 @@ prettier-linter-helpers@^1.0.0:
   dependencies:
     fast-diff "^1.1.2"
 
-prettier@^1.17.1:
-  version "1.19.1"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.19.1.tgz#f7d7f5ff8a9cd872a7be4ca142095956a60797cb"
-  integrity sha512-s7PoyDv/II1ObgQunCbB9PdLmUcBZcnWOcxDh7O0N/UwDEsHyqkW+Qh28jW+mVuCdx7gLB0BotYI1Y6uI9iyew==
+prettier@^2.0.2:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.0.2.tgz#1ba8f3eb92231e769b7fcd7cb73ae1b6b74ade08"
+  integrity sha512-5xJQIPT8BraI7ZnaDwSbu5zLrB6vvi8hVV58yHQ+QK64qrY40dULy0HSRlQ2/2IdzeBpjhDkqdcFBnFeDEMVdg==
 
 pretty-format@^25.1.0:
   version "25.1.0"