chore(flux): update image metallb-config 8.5.3 → 9.0.0 (clustertool) (#37012)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [metallb-config](https://truecharts.org/charts/premium/metallb-config)
([source](https://redirect.github.com/metallb/metallb)) | major |
`8.5.3` -> `9.0.0` |

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clustertool/embed/generic/kubernetes/core/metallb-config/app/helm-release.yaml

@@ -9,7 +9,7 @@ spec:
   chart:
     spec:
       chart: metallb-config
-      version: 8.5.3
+      version: 9.0.0
       sourceRef:
         kind: HelmRepository
         name: truecharts