build(deps): update kubernetes-sigs/kustomize to v5.8.1

This MR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [kubernetes-sigs/kustomize](https://github.com/kubernetes-sigs/kustomize) | patch | `v5.8.0` → `v5.8.1` |

MR created with the help of [el-capitano/tools/renovate-bot](https://gitlab.com/el-capitano/tools/renovate-bot).

**Proposed changes to behavior should be submitted there as MRs.**

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### Release Notes

<details>
<summary>kubernetes-sigs/kustomize (kubernetes-sigs/kustomize)</summary>

### [`v5.8.1`](https://github.com/kubernetes-sigs/kustomize/releases/tag/kustomize/v5.8.1)

[Compare Source](kubernetes-sigs/kustomize@kustomize/v5.8.0...kustomize/v5.8.1)

#### Introduction

This release completes a fix for namespace propagation that occurred in v5.8.0. [#&#8203;6031 (comment)](kubernetes-sigs/kustomize#6031 (comment))
Also addressed the breaking changes introduced in helm v4. [#&#8203;6016](kubernetes-sigs/kustomize#6016)

#### fix

[#&#8203;5990](kubernetes-sigs/kustomize#5990): fix: allow empty patches files
[#&#8203;6016](kubernetes-sigs/kustomize#6016): fix: support helm v4 beside v3
[#&#8203;6038](kubernetes-sigs/kustomize#6038): Fix a failing test
[#&#8203;6044](kubernetes-sigs/kustomize#6044): Fix namespace propagation problem at v5.8.0

#### Dependencies

[#&#8203;6057](kubernetes-sigs/kustomize#6057): Upgrade json-patch to v4.13.0 to remove pkg/errors dependency

#### chore

[#&#8203;6065](kubernetes-sigs/kustomize#6065): Update kyaml to v0.21.1
[#&#8203;6066](kubernetes-sigs/kustomize#6066): Update cmd/config to v0.21.1
[#&#8203;6067](kubernetes-sigs/kustomize#6067): Update api to v0.21.1

</details>

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Author: ECG Bot

chezmoi/dot_config/aquaproj-aqua/aqua.yaml

@@ -101,7 +101,7 @@ packages:
 - name: bitnami-labs/[email protected]
   description: A Kubernetes controller and tool for one-way encrypted Secrets
   link: https://github.com/bitnami-labs/sealed-secrets
-- name: kubernetes-sigs/kustomize@kustomize/v5.8.0
+- name: kubernetes-sigs/kustomize@kustomize/v5.8.1
   description: Customization of kubernetes YAML configurations
   link: https://github.com/kubernetes-sigs/kustomize
 - name: homeport/[email protected]