chore(docs): Updated API Reference (automated) (#13794)

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/AdminRefundReason.yaml

@@ -4,7 +4,7 @@ x-schemaName: AdminRefundReason
 required:
   - id
   - label
-  - metadata
+  - code
   - created_at
   - updated_at
 properties:
@@ -36,3 +36,7 @@ properties:
     format: date-time
     title: updated_at
     description: The date the refund reason was updated.
+  code:
+    type: string
+    title: code
+    description: The refund reason's code.