Bump prettier from 1.19.1 to 2.0.1 (#41)

Bumps [prettier](https://github.com/prettier/prettier) from 1.19.1 to 2.0.1.
- [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...2.0.1)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

package.json

@@ -35,7 +35,7 @@
     "jest": "^25.1.0",
     "jest-circus": "^25.1.0",
     "jest-runtime": "^25.1.0",
-    "prettier": "^1.17.1",
+    "prettier": "^2.0.1",
     "ts-jest": "^25.2.1",
     "typescript": "^3.8.3",
     "typescript-formatter": "^7.2.2"