Happy Path: Use `chectl auth:login` flow in PR checks
Happy Path: Use `chectl auth:login` flow in PR checks

This is needed because of https://github.com/che-incubator/chectl/pull/910

Signed-off-by: Radim Hopp <f2334741950c7b4719ce47f043d22a298d4930a0@redhat.com>

codenvy/che,codenvy/che,codenvy/che,codenvy/che