Add issue link to disabled JUnit reports
What does this MR do?
Add a link to https://gitlab.com/gitlab-org/gitlab-ce/issues/64756 for the changes made in https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/30254.
Add a link to https://gitlab.com/gitlab-org/gitlab-ce/issues/64756 for the changes made in https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/30254.