Fix failed pipeline 947094 with rubocop

What does this MR do and why?

Fix failed pipeline 947094 with rubocop.

Failed pipeline link: https://jihulab.com/gitlab-cn/gitlab/-/pipelines/947094

Rubocop failed job: https://jihulab.com/gitlab-cn/gitlab/-/jobs/6394859

Bug from !1040 (merged)

Related comment: !1040 (comment 2062031)

cc EM @daveliu