Update quay.io/appuio/oc Docker tag to v4.19#18

DebakelOrakel wants to merge 1 commit intomastertegridy-io/component-vcluster-provisioner:masterfrom

renovate/quay.io-appuio-oc-4.xtegridy-io/component-vcluster-provisioner:renovate/quay.io-appuio-oc-4.xCopy head branch name to clipboard