Change path to CI job traces
What does this MR do?
Change the path to new CI job traces path. Review app here http://ce-docs-job-traces.178.62.207.141.xip.io/ce/administration/job_traces.html
Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/47173
Upstream MR: https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/19194