Create Duo Tutorial: Python Shop App

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/179076



Merged-by: Amy Qualls <aqualls@gitlab.com>
Approved-by: Torsten Linz <tlinz@gitlab.com>
Approved-by: Amy Qualls <aqualls@gitlab.com>
Co-authored-by: Jonathan Glassman <jglassman@gitlab.com>