Bump @testing-library/jest-dom from 6.4.6 to 6.4.8 (primefaces#6970)

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
...

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

Author: dependabot[bot]

package-lock.json

@@ -54,7 +54,7 @@
         "@rollup/plugin-replace": "^5.0.7",
         "@stackblitz/sdk": "1.11.0",
         "@svgr/webpack": "^8.1.0",
-        "@testing-library/jest-dom": "^6.4.6",
+        "@testing-library/jest-dom": "^6.4.8",
         "@testing-library/react": "^14.1.2",
         "@testing-library/user-event": "^14.5.2",
         "@types/node": "^20.14.2",