Adapt our infrastructure to be able to handle tons of packages

When we’ll import all the packages we need into our own APT repository, it’s unlikely that our various cronjobs etc. handle the load as is. Same for our fail-over and backup systems.

Parent Task: #9489 (closed)

Subtasks

#10851 (closed)

Related issues

Related to #9508 (closed)
Blocked by #6295 (closed)

Original created by @intrigeri on 6303 (Redmine)

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