build(deps): Bump @testing-library/jest-dom from 6.6.3 to 6.8.0

Bumps [@testing-library/jest-dom](https://github.com/testing-library/jest-dom) from 6.6.3 to 6.8.0.
- [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/v6.6.3...v6.8.0

)

---
updated-dependencies:
- dependency-name: "@testing-library/jest-dom"
  dependency-version: 6.8.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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