This change moves the QEMU configuration for multiarch builds into a
dedicated role. Furthermore the execution will always be treated as
unchanged, unless an error occured!
The local config is intended to be configured per environment. Therefore
it feels awkward to navigate deeply into the structures simply to adjust
a local configuration. Furthermore this change allows me to make an
assumption about the file right in the executed code, so if the file is
not setup properly ansible will fail even before execution!
Here we start to have some delicate secrets in the code. Therefore I
need a vault for ansible. This vault contains the tokens to upload
ssh-keys to github and my lovely gitea server.
Note, that this change also adds a `requirements.yml`, this is necessary
because I use the paramater "api_url" of the github_key resource which
was only added in v11, but the debian ansible was shippped with an older
collection.
The group_vars dir is the standard destination for ansible to look for
variable-files. So I do not have to declare them in the main.yml
anymore. This change will make it easier for me to reason about upcoming
changes, like using a vault for sensitive information.
