Bump @testing-library/user-event from 12.8.3 to 14.4.3

Bumps [@testing-library/user-event](https://github.com/testing-library/user-event) from 12.8.3 to 14.4.3.
- [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@v12.8.3...v14.4.3)

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

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -66,7 +66,7 @@
     "@babel/eslint-parser": "^7.21.8",
     "@testing-library/jest-dom": "^5.16.5",
     "@testing-library/react": "^12.1.4",
-    "@testing-library/user-event": "^12.8.3",
+    "@testing-library/user-event": "^14.4.3",
     "@types/basic-auth": "^1.1.3",
     "@types/jest": "^27.5.2",
     "@types/koa__cors": "^3.3.0",