Update dependency kubernetes/kubernetes to v1.25.15

[renovate-rancher[bot]]

This PR contains the following updates:

Package	Update	Change
kubernetes/kubernetes	patch	v1.25.14 -> v1.25.15

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Release Notes

kubernetes/kubernetes (kubernetes/kubernetes)

### [`v1.25.15`](https://togithub.com/kubernetes/kubernetes/releases/tag/v1.25.15): Kubernetes v1.25.15 [Compare Source](https://togithub.com/kubernetes/kubernetes/compare/v1.25.14...v1.25.15) See [kubernetes-announce@](https://groups.google.com/forum/#!forum/kubernetes-announce). Additional binary downloads are linked in the [CHANGELOG](https://togithub.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.25.md). See [the CHANGELOG](https://togithub.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.25.md) for more details.

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Configuration

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