ci: fix eol centos8 mirror (#890)

Signed-off-by: Ric Li <[email protected]>

Author: ricmli

.github/workflows/centos_build.yml

@@ -55,6 +55,8 @@ jobs:
 
       - name: Install the build dependency
         run: |
+          sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-*
+          sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-*
           yum install -y dnf-plugins-core
           dnf config-manager --set-enabled powertools
           yum install -y epel-release