Remove outdated package versions from eLxr mirror

eLxr Packages that have been published using shared aptly logic from the pipeline are not automaticaly cleaned up. This can lead to having packages in the package repository that are outdated and sometimes not even supported. These can as such not be installed anymore.

An example being an older version of python3-tiler (0.2.9):

root@debian:~# apt install  python3-tiler=0.2.9
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 python3-tiler : Depends: python3-ruck but it is not installable
E: Unable to correct problems, you have held broken packages.
root@debian:~#

This should be resolved. The single version approach might be a good way forward here.

The original topic discussion comes from the eLxr Discourse.