To import a new package from Debian the current process required several
manual steps. This commit adds the --push-remote option to allow
creating and pushing the imported package to apertis remote gitlab
instance.

The following steps are now automatized:
* package folder is created and import process is performed in there.
* remote repo is created if it doesn't exist.
* remote branches and tags are pushed.
* gitlab settings are applied to remote repo.
* CI pipeline is triggered on all downstream branches.

Signed-off-by: Ariel D'Alessandro <ariel.dalessandro@collabora.com>

Import GitLabCI tests from `infrastructure/packaging-tools`.

Signed-off-by: Frédéric Danis <frederic.danis@collabora.com>

Update apt repositories before call build-dep.

Signed-off-by: Frédéric Danis <frederic.danis@collabora.com>

By default pipelines do not run in Merge Request context, but that's
exactly what the parent ci-package-builder pipeline is now doing.

Add a rule to run the local pipeline in whatever context the parent
pipeline triggered it.

Signed-off-by: Emanuele Aina <emanuele.aina@collabora.com>

Add some rules to the local pipeline so it gets skipped when tags are
pushed, instead of creating jobs that are currently failing.

Signed-off-by: Emanuele Aina <emanuele.aina@collabora.com>

Apertis has moved to using external references in the CI config path setting
for the packagign repositories, so the gitlab-ci.yml embedded in the
repository is no longer needed.

Signed-off-by: Emanuele Aina <emanuele.aina@collabora.com>

Signed-off-by: Emanuele Aina <emanuele.aina@collabora.com>

Signed-off-by: Andrew Lee (李健秋) <ajqlee@debian.org>