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/publish.yml

@@ -1,5 +1,11 @@
 name: Publish
 
+# If a pull-request is pushed then cancel all previously running jobs related
+# to that pull-request
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.sha }}
+  cancel-in-progress: true
+
 on:
   push:
     tags:

.github/workflows/review-checks.yml

@@ -1,5 +1,11 @@
 name: Review-checks
 
+# If a pull-request is pushed then cancel all previously running jobs related
+# to that pull-request
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.sha }}
+  cancel-in-progress: true
+
 on: [pull_request]
 
 jobs:
@@ -10,6 +16,9 @@ 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
@@ -52,6 +61,9 @@ jobs:
         ports:
           - 3306
     steps:
+      - name: Setup vault.centos.org
+        run: |
+          cp -v .github/centos7-repo-files/* /etc/yum.repos.d/
       # We have to install git 2.18+ to perform checkout via git
       # This is possible only via IUS repositories
       - name: Install git to allow checkout
@@ -135,6 +147,10 @@ jobs:
             # After fixing the names of unit test functions, migrate to the latest
           - name: fedora:38
     steps:
+      - name: Setup vault.centos.org
+        run: |
+          cp -v .github/centos7-repo-files/* /etc/yum.repos.d/
+        if: matrix.os-target.name != 'centos:7'
       - name: Set BKR_PY3 environment variable
         run: echo "BKR_PY3=1" >> $GITHUB_ENV
         if: matrix.os-target.name != 'centos:7'