build(deps-dev): bump prettier from 2.0.5 to 2.1.1 (#79)

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](prettier/prettier@2.0.5...2.1.1)

Signed-off-by: dependabot[bot] <support@github.com>
Signed-off-by: Xiang Dai <long0dai@foxmail.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -46,7 +46,7 @@
     "eslint-plugin-import": "^2.22.0",
     "eslint-plugin-prettier": "^3.1.4",
     "eslint-plugin-simple-import-sort": "^5.0.2",
-    "prettier": "^2.0.5",
+    "prettier": "^2.1.1",
     "typescript": "^4.0.2"
   }
 }