Merge branch 'sh-update-redis-client-0.21.1' into 'master'

Update redis-client to v0.21.1

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/147675



Merged-by: Allison Browne <abrowne@gitlab.com>
Approved-by: Allison Browne <abrowne@gitlab.com>
Co-authored-by: Stan Hu <stanhu@gmail.com>