chore(ci): use vault.centos.org for CentOS 7

.github/centos7-repo-files/CentOS-Base.repo

@@ -0,0 +1,49 @@
+# NOTE: This has been modified to use `vault.centos.org` as `mirrorlist.centos.org` is gone
+#
+# CentOS-Base.repo
+#
+# The mirror system uses the connecting IP address of the client and the
+# update status of each mirror to pick mirrors that are updated to and
+# geographically close to the client.  You should use this for CentOS updates
+# unless you are manually picking other mirrors.
+#
+# If the mirrorlist= does not work for you, as a fall back you can try the
+# remarked out baseurl= line instead.
+#
+#
+
+[base]
+name=CentOS-$releasever - Base
+#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os&infra=$infra
+#baseurl=http://mirror.centos.org/centos/$releasever/os/$basearch/
+baseurl=http://vault.centos.org/centos/$releasever/os/$basearch/
+gpgcheck=1
+gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
+
+#released updates
+[updates]
+name=CentOS-$releasever - Updates
+#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates&infra=$infra
+#baseurl=http://mirror.centos.org/centos/$releasever/updates/$basearch/
+baseurl=http://vault.centos.org/centos/$releasever/updates/$basearch/
+gpgcheck=1
+gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
+
+#additional packages that may be useful
+[extras]
+name=CentOS-$releasever - Extras
+#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras&infra=$infra
+#baseurl=http://mirror.centos.org/centos/$releasever/extras/$basearch/
+baseurl=http://vault.centos.org/centos/$releasever/extras/$basearch/
+gpgcheck=1
+gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
+
+#additional packages that extend functionality of existing packages
+[centosplus]
+name=CentOS-$releasever - Plus
+#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus&infra=$infra
+#baseurl=http://mirror.centos.org/centos/$releasever/centosplus/$basearch/
+baseurl=http://vault.centos.org/centos/$releasever/centosplus/$basearch/
+gpgcheck=1
+enabled=0
+gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

.github/workflows/review-checks.yml

@@ -10,6 +10,9 @@ jobs:
 
     steps:
     - uses: actions/checkout@v1
+    - name: Setup vault.centos.org
+      run: |
+        cp -v .github/centos7-repo-files/* /etc/yum.repos.d/
     - name: Install utils
       run: |
         yum install -y git wget ca-certificates