Move SMAU usage counters to the UsageData count field
What does this MR do?
In gitlab-foss#63888 (closed), #29960 (closed), gitlab-foss#63885 (closed), gitlab-foss#63882 (closed), gitlab-foss#63887 (closed), gitlab-foss#63886 (closed), #29961 (closed), #12502 (closed) we introduced several SMAU counters but there weren't added to the proper location.
In this MR we move them inside the UsageData count field.
Closes https://gitlab.com/gitlab-org/version-gitlab-com/issues/146, https://gitlab.com/gitlab-org/version-gitlab-com/issues/157, https://gitlab.com/gitlab-org/version-gitlab-com/issues/147, https://gitlab.com/gitlab-org/version-gitlab-com/issues/150, https://gitlab.com/gitlab-org/version-gitlab-com/issues/148, https://gitlab.com/gitlab-org/version-gitlab-com/issues/149, https://gitlab.com/gitlab-org/version-gitlab-com/issues/159, and https://gitlab.com/gitlab-org/version-gitlab-com/issues/158.