Wip/fredo/t5382 Switch to using the apertis images for lava jobs instead of stretch

Switch to using the apertis images for lava jobs instead of stretch

test jobs :

• https://lava.collabora.co.uk/scheduler/job/1323599
• https://lava.collabora.co.uk/scheduler/job/1323600
• https://lava.collabora.co.uk/scheduler/job/1323601
• https://lava.collabora.co.uk/scheduler/job/1323602
• https://lava.collabora.co.uk/scheduler/job/1323603
• https://lava.collabora.co.uk/scheduler/job/1323604