feat: Add requested_at + open status to return (#8391)

* feat: Add requested_at + open status to return

* Update return in confirm claim workflow

* Revert snapshot

* feat: Change OrderChangeType

* fix test

integration-tests/modules/__tests__/order/workflows/begin-order-return.spec.ts

@@ -394,7 +394,7 @@ medusaIntegrationTestRunner({
         const [returnOrder] = await remoteQuery(remoteQueryObject)
 
         expect(returnOrder.order_id).toEqual(order.id)
-        expect(returnOrder.status).toEqual("requested")
+        expect(returnOrder.status).toEqual("open")
         expect(returnOrder.id).toBeDefined()
       })
     })