Move from /events to /events-stream

[ni3k]

Is your feature request related to a problem? Please describe.

The admin /events endpoint will start to be rate limited from 1 of june, atlassian advises to move to the new /events-stream endpoint

https://developer.atlassian.com/cloud/admin/organization/poll-events-migration/?utm_source=sfmc&utm_medium=email&utm_campaign=EML-19864&jobid=107071534&subid=1724446864

Describe the solution you'd like

Add support for events-stream endpoint in admin/internal/organization_impl