build(deps-dev): bump @testing-library/jest-dom from 6.6.3 to 6.6.4

Bumps [@testing-library/jest-dom](https://github.com/testing-library/jest-dom) from 6.6.3 to 6.6.4.
- [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...v6.6.4)

---
updated-dependencies:
- dependency-name: "@testing-library/jest-dom"
  dependency-version: 6.6.4
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

package.json

@@ -43,7 +43,7 @@
     "@redhat-cloud-services/tsc-transform-imports": "1.0.25",
     "@rtk-query/codegen-openapi": "2.0.0",
     "@testing-library/dom": "10.4.1",
-    "@testing-library/jest-dom": "6.6.3",
+    "@testing-library/jest-dom": "6.6.4",
     "@testing-library/react": "16.3.0",
     "@testing-library/user-event": "14.6.1",
     "@types/node": "24.1.0",