Verify scripts are run such that stderr is captured and included in the JUnit
files. Stdout is not. Therefore the instructions in case of a failure where
only visible by searching the entire job log file, but not in the Prow summary.
These scripts rely on the system's default go; this changes that using
kube::golang::setup_env so that the appropriate go is used when the
system's isn't sufficient.
Signed-off-by: Stephen Kitt <skitt@redhat.com>
