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/AdminPayment.yaml

@@ -86,8 +86,8 @@ properties:
     type: array
     description: The details of payment refunds.
     items:
-      $ref: ./BaseRefund.yaml
+      $ref: ./AdminRefund.yaml
   payment_collection:
-    $ref: ./BasePaymentCollection.yaml
+    type: object
   payment_session:
-    $ref: ./BasePaymentSession.yaml
+    $ref: ./AdminPaymentSession.yaml