chore(deps): update velero chart to v8.1.0 (#1050)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [velero](https://redirect.github.com/vmware-tanzu/velero)
([source](https://redirect.github.com/vmware-tanzu/helm-charts)) | minor
| `8.0.0` -> `8.1.0` |

---

### Release Notes

<details>
<summary>vmware-tanzu/helm-charts (velero)</summary>

###
[`v8.1.0`](https://redirect.github.com/vmware-tanzu/helm-charts/releases/tag/velero-8.1.0)

[Compare
Source](https://redirect.github.com/vmware-tanzu/helm-charts/compare/velero-8.0.0...velero-8.1.0)

A Helm chart for velero

</details>

---

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are satisfied.

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rebase/retry checkbox.

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---

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src/velero/common/zarf.yaml

@@ -40,7 +40,7 @@ components:
       - name: velero
         namespace: velero
         url: https://vmware-tanzu.github.io/helm-charts
-        version: 8.0.0
+        version: 8.1.0
         repoName: velero
         releaseName: velero
         valuesFiles: