release: Upgrade to v18.4 failed, cannot install both kubelet-1.18.4-1.x86_64 and kubelet-1.18.4-0.x86_64

What happened: on the master centos-8 there is the following error message when trying to update the packages.

Problem: cannot install both kubelet-1.18.4-1.x86_64 and kubelet-1.18.4-0.x86_64
  - cannot install the best update candidate for package kubernetes-cni-0.7.5-0.x86_64
  - cannot install the best update candidate for package kubelet-1.18.3-0.x86_64

We don’t see this problem in the nodes centos-7 Likewise, we did not see this error in the master centtos-8 in the last update to v18.3.

How to reproduce it (as minimally and precisely as possible): yum update / dnf update

Environment:

• Kubernetes version (use kubectl version):

Client Version: version.Info{Major:"1", Minor:"18", GitVersion:"v1.18.3", GitCommit:"2e7996e3e2712684bc73f0dec0200d64eec7fe40", GitTreeState:"clean", BuildDate:"2020-05-20T12:52:00Z", GoVersion:"go1.13.9", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"18", GitVersion:"v1.18.3", GitCommit:"2e7996e3e2712684bc73f0dec0200d64eec7fe40", GitTreeState:"clean", BuildDate:"2020-05-20T12:43:34Z", GoVersion:"go1.13.9", Compiler:"gc", Platform:"linux/amd64"}

• Cloud provider or hardware configuration: vmware
• OS (e.g: cat /etc/os-release): centos-8