Update to containerd 1.7.0

[Pat Riehecky]

With containerd 1.7.0 released, can this be updated to track that?

[jseba]

Any update on the package story for 1.7? There's been 3 point releases so far for 1.7 and I don't see any packaging details for it. I'm willing to take a go at it but I don't know if this is being tracked elsewhere or if there are any blockers.