chore(docs): Updated API Reference (v2) (#9437)

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/apps/api-reference/specs/admin/components/schemas/RefundReason.yaml

@@ -0,0 +1,35 @@
+type: object
+description: The refund reason's details.
+x-schemaName: RefundReason
+required:
+  - id
+  - label
+  - metadata
+  - created_at
+  - updated_at
+properties:
+  id:
+    type: string
+    title: id
+    description: The refund reason's ID.
+  label:
+    type: string
+    title: label
+    description: The refund reason's label.
+  description:
+    type: string
+    title: description
+    description: The refund reason's description.
+  metadata:
+    type: object
+    description: The refund reason's metadata, can hold custom key-value pairs.
+  created_at:
+    type: string
+    format: date-time
+    title: created_at
+    description: The date the refund reason was created.
+  updated_at:
+    type: string
+    format: date-time
+    title: updated_at
+    description: The date the refund reason was updated.