Merge pull request #600 from ronnel-santiago-xero/apib-5555_pageinfo_invoices_ep

[APIB-5555] Use the correct ref for GetInvoicesResponse

Author: manishT72

xero_accounting.yaml

@@ -26130,7 +26130,7 @@ components:
           type: array
           minItems: 1
           items:
-            $ref: '#/components/schemas/Invoices'
+            $ref: '#/components/schemas/Invoice'
     OnlineInvoices:
       type: object
       x-isObjectArray: true