chore(flux): update image kube-prometheus-stack 72.7.0 → 72.8.0 (clustertool) (#35814)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
|
[kube-prometheus-stack](https://redirect.github.com/prometheus-operator/kube-prometheus)
([source](https://redirect.github.com/prometheus-community/helm-charts))
| minor | `72.7.0` -> `72.8.0` |

---

### Release Notes

<details>
<summary>prometheus-community/helm-charts
(kube-prometheus-stack)</summary>

###
[`v72.8.0`](https://redirect.github.com/prometheus-community/helm-charts/releases/tag/kube-prometheus-stack-72.8.0)

[Compare
Source](https://redirect.github.com/prometheus-community/helm-charts/compare/kube-prometheus-stack-72.7.0...kube-prometheus-stack-72.8.0)

kube-prometheus-stack collects Kubernetes manifests, Grafana dashboards,
and Prometheus rules combined with documentation and scripts to provide
easy to operate end-to-end Kubernetes cluster monitoring with Prometheus
using the Prometheus Operator.

#### What's Changed

- \[kube-prometheus-stack] Update kube-prometheus-stack dependency
non-major updates by
[@&#8203;renovate](https://redirect.github.com/renovate) in
[https://github.com/prometheus-community/helm-charts/pull/5703](https://redirect.github.com/prometheus-community/helm-charts/pull/5703)

**Full Changelog**:
https://github.com/prometheus-community/helm-charts/compare/prometheus-fastly-exporter-0.6.1...kube-prometheus-stack-72.8.0

</details>

---

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---

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---

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clustertool/embed/generic/kubernetes/system/kube-prometheus-stack/app/helm-release.yaml

@@ -10,7 +10,7 @@ spec:
   chart:
     spec:
       chart: kube-prometheus-stack
-      version: 72.7.0
+      version: 72.8.0
       sourceRef:
         kind: HelmRepository
         name: prometheus-community