deb pkgs: automated tests

We want an automated test stage in our CI (Jenkins) that ensures that packages we publish can be properly installed and in the case of the one-click-install ensure that the repository is added and works when using apt update / upgrade

Definition of done: When we run the internal packaging CI job for a Debian/Ubuntu package we will get a QA stage where a container will be used to install Jami. This job must to verify at least items in this wiki page: https://git.jami.net/savoirfairelinux/jami-packaging/wikis/Test-Suite

We have this WIP in Gerrit: https://review.jami.net/c/ring-project/+/12869