Bump @testing-library/jest-dom from 6.2.0 to 6.4.2 in /ui (#2845)

Bumps [@testing-library/jest-dom](https://github.com/testing-library/jest-dom) from 6.2.0 to 6.4.2.
- [Release notes](https://github.com/testing-library/jest-dom/releases)
- [Changelog](https://github.com/testing-library/jest-dom/blob/main/CHANGELOG.md)
- [Commits](https://github.com/testing-library/jest-dom/compare/v6.2.0...v6.4.2)

---
updated-dependencies:
- dependency-name: "@testing-library/jest-dom"
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

ui/package.json

@@ -38,7 +38,7 @@
     "uuid": "^9.0.1"
   },
   "devDependencies": {
-    "@testing-library/jest-dom": "^6.2.0",
+    "@testing-library/jest-dom": "^6.4.2",
     "@testing-library/react": "^12.1.5",
     "@testing-library/react-hooks": "^7.0.2",
     "@testing-library/user-event": "^14.5.2",