`ExpireBuildArtifactsWorker` is being killed by Sidekiq Memory killer
Problem
Continued from https://gitlab.com/gitlab-org/gitlab-ce/issues/61955.
We have to fix this memory hog.
https://dashboards.gitlab.net/d/sQ4GXgpik/memory-usage?orgId=1&from=now-6h&to=now
Edited by Shinya Maeda