Bump prettier from 2.0.5 to 2.1.1 (#15)

Bumps [prettier](https://github.com/prettier/prettier) from 2.0.5 to 2.1.1.
- [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/2.0.5...2.1.1)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -35,7 +35,7 @@
         "eslint-plugin-github": "^4.1.1",
         "eslint-plugin-jest": "^23.20.0",
         "js-yaml": "^3.14.0",
-        "prettier": "2.0.5",
+        "prettier": "2.1.1",
         "typescript": "^3.9.7"
     }
 }