Merge branch 'mtimoustafa/460121-support-duo-enterprise-in-usage-quotas-ui' into 'master'

Improve Duo-related copy in Duo Admin Area page

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/155070



Merged-by: Vitaly Slobodin <vslobodin@gitlab.com>
Approved-by: Angelo Gulina <agulina@gitlab.com>
Approved-by: Vitaly Slobodin <vslobodin@gitlab.com>
Reviewed-by: Angelo Gulina <agulina@gitlab.com>
Reviewed-by: Sheldon Led <sheldonled@gitlab.com>
Co-authored-by: Mohamed Moustafa <mmoustafa@gitlab.com>