Merge branch...

Merge branch '387995-remove-backup-upload-support-using-openstack-swift-and-rackspace-apis' into 'master'

Remove backup upload drivers Openstack Swift and Rackspace

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/112952



Merged-by: charlie ablett <cablett@gitlab.com>
Approved-by: Tiger Watson <twatson@gitlab.com>
Approved-by: charlie ablett <cablett@gitlab.com>
Co-authored-by: Valery Sizov <valery@gitlab.com>