chore(go.mod): Add comments to explain why we use `go.etcd.io/etcd/client/v2` instead of `go.etcd.io/etcd/client/v3`
chore(go.mod): Add comments to explain why we use `go.etcd.io/etcd/client/v2` instead of `go.etcd.io/etcd/client/v3`

Scalingo/etcd-discovery