chore(flux): update helm release longhorn 1.7.2 → 1.8.0 (clustertool) (#31096)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [longhorn](https://redirect.github.com/longhorn/longhorn)
([source](https://redirect.github.com/longhorn/charts)) | minor |
`1.7.2` -> `1.8.0` |

---

> [!WARNING]
> Some dependencies could not be looked up. Check the Dependency
Dashboard for more information.

---

### Release Notes

<details>
<summary>longhorn/charts (longhorn)</summary>

###
[`v1.8.0`](https://redirect.github.com/longhorn/charts/releases/tag/longhorn-1.8.0)

[Compare
Source](https://redirect.github.com/longhorn/charts/compare/longhorn-1.7.2...longhorn-1.8.0)

Longhorn is a distributed block storage system for Kubernetes.

</details>

---

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clustertool/embed/generic/kubernetes/system/longhorn/app/helm-release.yaml

@@ -9,7 +9,7 @@ spec:
   chart:
     spec:
       chart: longhorn
-      version: 1.7.2
+      version: 1.8.0
       sourceRef:
         kind: HelmRepository
         name: longhorn