Merge branch 'determine-sharding-key-feature-category-purchase' into 'master'

Add sharding keys for purchase

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/142505



Merged-by: Michał Zając <mzajac@gitlab.com>
Approved-by: Bishwa Hang Rai <bhrai@gitlab.com>
Approved-by: Michał Zając <mzajac@gitlab.com>
Approved-by: Chase Southard <csouthard@gitlab.com>
Reviewed-by: Rémy Coutable <remy@rymai.me>
Reviewed-by: Bishwa Hang Rai <bhrai@gitlab.com>
Co-authored-by: Dylan Griffith <dyl.griffith@gmail.com>