build(deps): bump @testing-library/user-event in /frontend

Bumps [@testing-library/user-event](https://github.com/testing-library/user-event) from 7.2.1 to 14.5.2.
- [Release notes](https://github.com/testing-library/user-event/releases)
- [Changelog](https://github.com/testing-library/user-event/blob/main/CHANGELOG.md)
- [Commits](testing-library/user-event@v7.2.1...v14.5.2)

---
updated-dependencies:
- dependency-name: "@testing-library/user-event"
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

frontend/package-lock.json

@@ -17,7 +17,7 @@
 	"dependencies": {
 		"@testing-library/jest-dom": "^5.16.2",
 		"@testing-library/react": "^12.1.2",
-		"@testing-library/user-event": "^7.2.1",
+		"@testing-library/user-event": "^14.5.2",
 		"js-cookie": "^2.2.1",
 		"query-string": "^6.14.1",
 		"react": "^16.14.0",