[test] remove some unused imports
[430536] Add script to retrieve the URI of the latest platform I-build

Bug: 430536
Change-Id: I638d7f5e6a3084630bbb7df8a71d1a5349880056
Signed-off-by: Pierre-Charles David <pierre-charles.david@obeo.fr>
[build] Refresh the canary target platform

Change-Id: I65517130a0c4cda4e8c61e631aa25f65b90630a5
[430536] Use mktemp instead of tempfile in script

Change-Id: I80142356d4ec168d42d21659ae8720a02dd9d369
Signed-off-by: Pierre-Charles David <pierre-charles.david@obeo.fr>