[JIRA] (OVIRT-2396) mirrors_client should export the the files it injects

mirrors_client should export the the files it injects ----------------------------------------------------- Key: OVIRT-2396 URL: https://ovirt-jira.atlassian.net/browse/OVIRT-2396 Project: oVirt - virtualization made easy Issue Type: Improvement Components: Change Queue, Standard CI (Pipelines) Reporter: Daniel Belenky Assignee: infra Labels: first_time_task As an infra-owner I want to be able to see the injected repo files so that I'll be able to easily view the repos that were used by OST for debugging. * mirror_client.py should collect the files it injects mirrors to and put them in a dedicated directory - probably should be some kind of a flag so we won't change the default behavior. * after mirror injection is called in CI/CQ we need to export them.