Merge branch 'pw-admin-subscription-metrics' into 'master'

Add tracking and metrics to admin subscription page

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/157478



Merged-by: David Pisek <dpisek@gitlab.com>
Approved-by: Rudy Crespo <rcrespo@gitlab.com>
Approved-by: David Pisek <dpisek@gitlab.com>
Reviewed-by: Rudy Crespo <rcrespo@gitlab.com>
Co-authored-by: Paul <19602001-paintedbicycle-gitlab@users.noreply.gitlab.com>