ci.jpl: Update try-catch logic for waiting LAVA jobs

Output of lava_wait_jobs.py should always be printed and parsed. And the
artifacts should also be archived anyway. So move related codes into the
"finally" block.

Signed-off-by: Xinyu Zhang <xinyu.zhang@arm.com>
Change-Id: If20bac0a290dc359af6f56a88a205865c6b051f5
1 file changed