fix: upgrade prettier from 2.3.0 to 2.4.1

Snyk has created this PR to upgrade prettier from 2.3.0 to 2.4.1.

See this package in npm:
https://www.npmjs.com/package/prettier

See this project in Snyk:
https://app.snyk.io/org/quittle/project/67e2dc69-f378-4c88-be15-2d127d663877?utm_source=github&utm_medium=referral&page=upgrade-pr

Author: snyk-bot

package-lock.json

@@ -38,7 +38,7 @@
         "eslint": "^7.32.0",
         "jest": "^26.6.3",
         "minimatch": "^3.0.4",
-        "prettier": "^2.3.0",
+        "prettier": "^2.4.1",
         "ts-jest": "^26.5.6",
         "ts-loader": "^9.2.5",
         "typescript": "^4.4.2",