workflow: add workflow to invoke script that measures percentage of commits with failed status
workflow: add workflow to invoke script that measures percentage of commits with failed status

The workflow runs on a cron schedule on a weekly basis - once every week

Fixes #13167

mkumatag/etcd,mqliang/etcd,etcd-io/etcd,ajityagaty/etcd,rnaveiras/etcd,mqliang/etcd,ajityagaty/etcd,ajityagaty/etcd,etcd-io/etcd,mqliang/etcd,rnaveiras/etcd,etcd-io/etcd,rnaveiras/etcd,mkumatag/etcd,mkumatag/etcd