warning: /var/cache/yum/x86_64/7/runner_gitlab-runner/packages/gitlab

to solve the error GPG key retrieval failed: [Errno 14] HTTPS Error 404 – Not Found

I use the command:

curl -L https://packages.gitlab.com/install/repositories/runner/gitlab-runner/script.rpm.sh | sudo bash

then run again

yum update

Referensi

https://forum.gitlab.com/t/unable-to-upgrade-from-13-12-2-to-14-0-4-centos-7-9-2009/55420/2