Use `openshift admin ca` instead of deprecated command
The test infra today uses `openshift admin create-master-certs` which is
deprecated. The command was moved under the `openshift admin ca` bucket.
@@ -66,7 +66,7 @@ function os::start::internal::create_master_certs() {
openshift_executable="$(os::start::internal::openshift_executable "${version}")"
os::log::info "Creating certificates for the OpenShift server"
- ${openshift_executable} admin create-master-certs \
+ ${openshift_executable} admin ca create-master-certs \
--overwrite=false \
--master="${MASTER_ADDR}" \
--cert-dir="${MASTER_CONFIG_DIR}" \
