chore(flux): update image volsync 2.8.1 → 2.9.0 (clustertool) (#32179)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [volsync](https://truecharts.org/charts/system/volsync)
([source](https://redirect.github.com/backube/helm-charts)) | minor |
`2.8.1` -> `2.9.0` |

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

@@ -8,7 +8,7 @@ spec:
   chart:
     spec:
       chart: volsync
-      version: 2.8.1
+      version: 2.9.0
       sourceRef:
         kind: HelmRepository
         name: truecharts