Merge branch '249561-update-workhorse' into 'master'

Update Workhorse to v8.47.0

Closes #249561

See merge request gitlab-org/gitlab!42855

GITLAB_WORKHORSE_VERSION

-8.46.0
+8.47.0

changelogs/unreleased/249561-update-workhorse.yml

+---
+title: Update GitLab Workhorse to v8.47.0
+merge_request: 42855
+author:
+type: other