CentOS7 Yum 源方式升级 golang

https://go-repo.io/ 上的步骤： ```csharp rpm --import https://mirror.go-repo.io/centos/RPM-GPG-KEY-GO-REPO curl -s https://mirror.go-repo.io/centos/go-repo.repo | tee /etc/yum.repos.d/go-repo.repo y...