Correctly upcast {{brick}} tags
Currently the {{brick}}
tags have to be converted to <quiqqer-brick>
-tags before inserting the content into the CKEditor.
To prevent this the text nodes default upcast could be overwritten so that the editor upcasts the tags correctly.
See https://github.com/ckeditor/ckeditor5/issues/10898#issuecomment-979248363 for isntructions.