These are files for automated testing, they are not packaged in the releases… So finally it’s only one file that changes, you can click on the raw-view of a file in github and download it:
https://raw.githubusercontent.com/nextcloud/server/913758dc283d510d7e2400d52280939ab2d97d36/apps/dav/lib/Connector/Sabre/BearerAuth.php
You can use this file to replace yours manually.
12.0.1 will have it, I checked the release schedule again, now it is early July (Maintenance and Release Schedule · nextcloud/server Wiki · GitHub)