fix(ci-bot): don't try to get the children of the windows builder

The windows builder's failure console has funny characters (b'\xbb')
that don't parse with this script. They render fine on the website ("ยป")
but not here for some reason. Since it's a leaf job, skip trying to
parse the console to side step the issue.

Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>
Change-Id: I2beb2819d3dcdba2290012e618dcf80ac44cfee8
1 file changed