Linux builds are failing with new docker-py 3.6.0
@samuel.gaist: could you have a look at this today?
N.B.: there is an issue with the current "Schedules" feature of gitlab (https://secure.idiap.ch/bugzilla5/show_bug.cgi?id=15791)
TBC: I just re-ran the nightlies manually to see if the builds would get stuck in the same position: https://gitlab.idiap.ch/beat/beat.nightlies/pipelines/25464