Store the junit.xml file produced while running the unit tests.
Store the junit.xml file produced while running the unit tests.

Signed-off-by: Silvin Lubecki <401770a0308861deccc8b11ddc198194637c848d@docker.com>

thaJeztah/cli,docker/cli,cpuguy83/cli,docker/cli,thaJeztah/cli,cpuguy83/cli