Update Praefect scenario to include Gitaly storage
Updates the Praefect scenario to include Gitaly storage. Used to test the use case of migrating a project to Praefect that was originally created on a Gitaly (non-Praefect) node.
Part of https://gitlab.com/gitlab-org/quality/testcases/-/issues/837
Depends on https://gitlab.com/gitlab-org/gitlab-qa/-/merge_requests/470
Edited by George Koltsov