You should be redirected automatically to target URL: https://repo.ito.gov.ir/kubernetes/yum/repos/kubernetes-el7-aarch64/Packages/d274c7c413c0629080cfc5b50217ea1028e96a286f6f48dda5a108574c6643a0-kubeadm-1.18.9-0.aarch64.rpm. If not click the link.