Design a 2nd ISO testing machine

We need to update a bit our hardware specs/research work given the recent developments and plans.

Blueprint: https://tails.boum.org/blueprint/hardware_for_automated_tests_take2/

Parent Task: #11009 (closed)

Related issues

• Related to #6729 (closed)
• Blocked by #11113 (closed)

Original created by @intrigeri on 11011 (Redmine)