chore(docs): Updated API Reference (v2) (#8609)

Automated changes by [create-pull-request](https://github.com/peter-evans/create-pull-request) GitHub action

Co-authored-by: Shahed Nasser <27354907+shahednasser@users.noreply.github.com>

www/utils/generated/oas-output/schemas/AdminServiceZone.ts

@@ -7,6 +7,7 @@
  *   - id
  *   - name
  *   - fulfillment_set_id
+ *   - fulfillment_set
  *   - geo_zones
  *   - shipping_options
  *   - created_at
@@ -25,6 +26,8 @@
  *     type: string
  *     title: fulfillment_set_id
  *     description: The service zone's fulfillment set id.
+ *   fulfillment_set:
+ *     $ref: "#/components/schemas/AdminFulfillmentSet"
  *   geo_zones:
  *     type: array
  *     description: The service zone's geo zones.