chore(docs): Updated API Reference (v2) (#9666)

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

Co-authored-by: Oli Juhl <59018053+olivermrbl@users.noreply.github.com>
Co-authored-by: Shahed Nasser <27354907+shahednasser@users.noreply.github.com>

www/apps/api-reference/specs/admin/components/schemas/AdminOrderLineItem.yaml

@@ -3,10 +3,8 @@ description: The item's details.
 x-schemaName: AdminOrderLineItem
 required:
   - title
-  - metadata
   - id
-  - subtitle
-  - thumbnail
+  - metadata
   - created_at
   - updated_at
   - item_total
@@ -20,6 +18,8 @@ required:
   - tax_total
   - discount_total
   - discount_tax_total
+  - subtitle
+  - thumbnail
   - variant_id
   - product_id
   - product_title