Update module github.com/k3s-io/containerd to v1.7.15

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
github.com/k3s-io/containerd	v1.7.15-k3s1 -> v1.7.15

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Release Notes

k3s-io/containerd (github.com/k3s-io/containerd)

### [`v1.7.15`](https://togithub.com/k3s-io/containerd/compare/v1.7.15-k3s1.27...v1.7.15) [Compare Source](https://togithub.com/k3s-io/containerd/compare/v1.7.15-k3s1.27...v1.7.15) ### [`v1.7.15-k3s1.27`](https://togithub.com/k3s-io/containerd/compare/v1.7.15-k3s1...v1.7.15-k3s1.27) [Compare Source](https://togithub.com/k3s-io/containerd/compare/v1.7.15-k3s1...v1.7.15-k3s1.27)

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Configuration

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