Cleanup of repositories and preparation for Milky Way v0.4.4 release

We are currently cleaning our server from all old and outdated packages as our next version Milky Way v0.4.4 is going to be released soon as result of hard work in the last three months since Milky Way v0.4.3. Expected release date for v0.4.4 is December 29th 2023.

UPDATE: Out of the reasoning that we have restructured many packages we have to postpone the scheduled release a week forward to January 5th 2024. The synchronization is taking long and we want a good working release for all users. Thank you for understanding!