ctr: promote cOpts over opts, as oci.WithImageConfig requires snapshot
ctr: promote cOpts over opts, as oci.WithImageConfig requires snapshot

Signed-off-by: Akihiro Suda <ea940da7e429af3d0d0c18296cabd0112a36bad5@lab.ntt.co.jp>

vdemeester/containerd,miaoyq/containerd,dmcgowan/containerd,kunalkushwaha/containerd,crosbymichael/containerd,dmcgowan/containerd,mikebrow/containerd,vdemeester/containerd,thaJeztah/containerd,crosbymichael/containerd,containerd/containerd,thaJeztah/containerd,miaoyq/containerd,kunalkushwaha/containerd,containerd/containerd,estesp/containerd,estesp/containerd,mikebrow/containerd