haproxy from home:joramk:haproxy20 project

需要 CentOS 8 Stream ，用 root 執行：

cd /etc/yum.repos.d/
wget https://download.opensuse.org/repositories/home:joramk:haproxy20/CentOS_8_Stream/home:joramk:haproxy20.repo
yum install haproxy

需要 CentOS 8 ，用 root 執行：

cd /etc/yum.repos.d/
wget https://download.opensuse.org/repositories/home:joramk:haproxy20/CentOS_8/home:joramk:haproxy20.repo
yum install haproxy

需要 CentOS 7 ，用 root 執行：

cd /etc/yum.repos.d/
wget https://download.opensuse.org/repositories/home:joramk:haproxy20/CentOS_7/home:joramk:haproxy20.repo
yum install haproxy