Containerd 2.0 support

[aojea]

Containerd is close to release a new major version 2.0 and this will may bring some changes

Per example, I had to test something with containerd 2.0 and the kind load docker-images command fails with

kind load docker-image ghcr.io/aojea/kindnetd:v1.6.0
Image: "ghcr.io/aojea/kindnetd:v1.6.0" with ID "sha256:03579ba24d18613b5f6af6fe639a877d59e899ce88214598ef228e98484b0354" not yet present on node "kind-worker", loading...
Image: "ghcr.io/aojea/kindnetd:v1.6.0" with ID "sha256:03579ba24d18613b5f6af6fe639a877d59e899ce88214598ef228e98484b0354" not yet present on node "kind-worker2", loading...
Image: "ghcr.io/aojea/kindnetd:v1.6.0" with ID "sha256:03579ba24d18613b5f6af6fe639a877d59e899ce88214598ef228e98484b0354" not yet present on node "kind-control-plane", loading...
ERROR: failed to detect containerd snapshotter

Tasks

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1. kind load docker-images for containerd 2.0
2. add CI job with containerd 2.0

[aojea]

/cc @samuelkarp @AkihiroSuda @BenTheElder

[AkihiroSuda]

kind/pkg/cluster/nodeutils/util.go

Line 105 in 541b8f9

snapshotter, ok := parsed.GetPath([]string{"plugins", "io.containerd.grpc.v1.cri", "containerd", "snapshotter"}).(string)

For containerd config version 3 (introduced in containerd v2.0), this function should check plugins.'io.containerd.cri.v1.images'.snapshotter.

See https://github.com/containerd/containerd/blob/v2.0.0-rc.6/docs/cri/config.md#snapshotter

[BenTheElder]

We should definitely not rush containerd 2.0, consider also that we desire to support older kubernetes releases for a while

We have preemptively been preparing in some cases like #2875