Reduced expire date of Android artifacts from 1 week to 2 days. They took over...

Reduced expire date of Android artifacts from 1 week to 2 days.

They took over 60Go a day, making disk space monitoring complicated. We should not rely on artifacts after several days.

If we need outdated artifacts, we will need to relaunch the needed jobs.

Actual artifacts are still uploaded for all Android jobs, in case they might be needed.