run upgrade tests if UPGRADE_FROM is set (#269)
run upgrade tests if UPGRADE_FROM is set (#269)

Changelog: none
Signed-off-by: Greg Di Stefano <ad56eae978b1eecdaf3598d41f1b4e888ae19e33@gmail.com>
pasinskim/integration,pasinskim/integration,GregorioDiStefano/integration,GregorioDiStefano/integration,pasinskim/integration