Bump @ckeditor/ckeditor5-dev-utils from 12.0.5 to 12.0.6

Bumps [@ckeditor/ckeditor5-dev-utils](https://github.com/ckeditor/ckeditor5-dev) from 12.0.5 to 12.0.6.
- [Release notes](https://github.com/ckeditor/ckeditor5-dev/releases)
- [Commits](https://github.com/ckeditor/ckeditor5-dev/compare/@ckeditor/ckeditor5-dev-utils@12.0.5...@ckeditor/ckeditor5-dev-utils@12.0.6

)

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