docs(api): update postman collection link

src/api-reference/06.shipments.md

@@ -8,7 +8,7 @@ there are too many to list. We will look at the different package types and then
 look at the different options available to them. Then we bring all of it
 together with some examples.
 
-[![Run in Postman](https://run.pstmn.io/button.svg)](https://app.getpostman.com/run-collection/9df5cb4cf2026e7ef4c0?action=collection%2Fimport)
+[![Run in Postman](https://run.pstmn.io/button.svg)](https://app.getpostman.com/run-collection/7070888-5dfe086d-0115-4392-8d9b-cf1247630ff1?action=collection%2Ffork&source=rip_markdown&collection-url=entityId%3D7070888-5dfe086d-0115-4392-8d9b-cf1247630ff1%26entityType%3Dcollection%26workspaceId%3D3cc49fd3-3cc4-41bf-92cd-be0a13969d2e)
 
 ## 6.A Shipment option combinations