Create manual playbooks for upgrading Copr instances
There is a problem with our current playbooks, that they can be
executed automatically without us knowing about it. That is an issue
particularly during release process because we can prepare new
packages into infra-tags repo or bodhi and a nightly reprovision
can upgrade to them outside of an outage window or any of us being
prepared for it.
Therefore `groups/copr-*.yml` playbooks *should not* upgrade any
packages, but only ensure, that those packages are installed. For
upgrade, there should be separate `manual/copr/copr-*-upgrade.yml`
playbooks. Because they are located under `manual` directory, it
is secured, that they can't be run automatically.