Hi,
Vorta2 image author here. Because of the attention this has received, the image has been made a part of the official borgbase git repos at https://github.com/borgbase/vorta-docker
The new location for the images will be
ghcr.io/borgbase/vorta-docker
I believe that the issue is fixed in the latest image available there. The fix is not available at the original repo location and I've put up a notice about the new location there as well.
Thanks,
Mark