chore(deps-dev): update @testing-library/jest-dom requirement (patternfly#426)

Updates the requirements on [@testing-library/jest-dom](https://github.com/testing-library/jest-dom) to permit the latest version.
- [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@v6.4.8...v6.6.3)

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

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

Author: dependabot[bot]

package.json

@@ -41,7 +41,7 @@
     "@octokit/rest": "^21.0.1",
     "@swc/core": "1.7.42",
     "@testing-library/dom": "^10.3.2",
-    "@testing-library/jest-dom": "^6.4.8",
+    "@testing-library/jest-dom": "^6.6.3",
     "@testing-library/react": "^16.0.0",
     "@testing-library/user-event": "14.5.2",
     "@types/jest": "^29.5.12",