gitlab-ci: Remove the avocado tests from the CI pipelines

We are going to move the remaining Avocado tests step by step
into the functional test framework. Unfortunately, Avocado fails
with an error if it cannot determine a test to run, so disable
the tests here now to avoid failures in the Gitlab-CI during the
next steps.

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-ID: <20250414113031.151105-2-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2 files changed