refactor(mk,check-system): remove add-apt-repository from dependencies' list

We won't use it at first
refactor(mk): remove 'add-apt-repository' package dependency

* remove from tasks: check-system, install-infra
We won't use 'systemd' right now so no need for PPA
Merge branch 'dev' of ssh://git.edouard-lopez.com:822/root/mast into dev
Merge branch 'dev' of ssh://git.edouard-lopez.com:822/root/mast into dev