Update @testing-library/dom Reference

[fenriskiba]

Problem description

Our approved license scans are being triggered by this package because of a nested dependency. An older version of lz-string that uses the WTFPL license is being used by @testing-library/dom:8.19.0.

Suggested solution

The latest version of lz-string uses the MIT License and is available in newer versions of @testing-library/dom. Updating to the latest version of the dom package should resolve our license scans.

Additional context

No response