Currently there is no such image available: The CDN delivery mechanism is much lower cost for both Pega and our clients and much less accident prone – installs cannot be done incorrectly as they have been eliminated.
Note that we are reviewing this as some governments and our highly regulated customers have quite strict processes that take a long time to get new approaches approved.
I hope this helps answer your question.
**** EDIT ******
As of October 2023 I found that there might be a workaround.