Bump @testing-library/jest-dom from 6.4.6 to 6.4.8 in /ui (#421)

Bumps [@testing-library/jest-dom](https://github.com/testing-library/jest-dom) from 6.4.6 to 6.4.8.
- [Release notes](https://github.com/testing-library/jest-dom/releases)
- [Changelog](https://github.com/testing-library/jest-dom/blob/main/CHANGELOG.md)
- [Commits](testing-library/jest-dom@v6.4.6...v6.4.8)

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

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

ui/package.json

@@ -36,7 +36,7 @@
     "@babel/preset-env": "7.25.0",
     "@babel/preset-react": "7.24.7",
     "@babel/preset-typescript": "7.24.7",
-    "@testing-library/jest-dom": "6.4.6",
+    "@testing-library/jest-dom": "6.4.8",
     "@testing-library/react": "16.0.0",
     "@testing-library/user-event": "14.5.2",
     "@types/jest": "^29.5.12",