Merge branch 'rhardarson-master-patch-78029' into 'master'

Group details for buy_storage_link feature flag

See merge request gitlab-org/gitlab!43538

ee/config/feature_flags/development/buy_storage_link.yml

 ---
 name: buy_storage_link
-introduced_by_url: 
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/35360
 rollout_issue_url:
-group: 
+group: group::fulfillment
 type: development
 default_enabled: false