chore(docs): Updated API Reference (automated) (#12826)

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/AdminDraftOrderPreview.yaml

@@ -40,6 +40,7 @@ required:
   - original_shipping_total
   - original_shipping_subtotal
   - original_shipping_tax_total
+  - credit_line_total
 properties:
   return_requested_total:
     type: number
@@ -653,3 +654,7 @@ properties:
     description: The order preview's credit lines.
     items:
       $ref: ./OrderCreditLine.yaml
+  credit_line_total:
+    type: number
+    title: credit_line_total
+    description: The draft order preview's credit line total.