Run the test suite automatically on autobuilt ISOs

Originally created by Tails on #5288 (Redmine)

Running the test suite automatically on the ISO built by autobuild would improve the quality of our development branches and overall robustness.

Subtasks

• #6564 (closed)
• #6565 (closed)
• tails#7631 (closed)
• tails#8667 (closed)
• #9486 (closed)
• tails#9597 (closed)
• #9645 (closed)
• tails#10117 (closed)
• tails#10118 (closed)
• tails#10119 (closed)
• #10158 (closed)
• tails#10229 (closed)
• #10287 (closed)
• tails#10296 (closed)
• #10382 (closed)
• #10396 (closed)
• #10409 (closed)
• tails#10445 (closed)
• tails#10507 (closed)
• #10601 (closed)
• tails#10717 (closed)
• tails#10725 (closed)
• tails#10863 (closed)
• tails#10993 (closed)

Related issues

• Related to #6090 (closed)
• Blocked by tails#7060 (closed)
• Blocked by tails#8539 (closed)