Update to latest for https://github.com/GoogleContainerTools/kaniko/issues/477
Updating Kaniko image to latest. GitLab already documented using it in any case: https://docs.gitlab.com/ee/ci/docker/using_kaniko.html
GitLab jobs artifacts no longer stored forever as of Monday, November 4th 08:30h. Further information under https://cern.ch/otg0152576
Updating Kaniko image to latest. GitLab already documented using it in any case: https://docs.gitlab.com/ee/ci/docker/using_kaniko.html