[Tails-testers] Call for testing: tentative Tails 4.8 image

Hi!

Please test the *tentative* image for Tails 4.8:

    https://mirrors.edge.kernel.org/tails/stable/tails-amd64-4.8/

It did not go through our quality assurance process yet, so until this
release is officially published, do not use it for anything
critical! :)

Cheers!