fix(charts): update helm release velero to v7.1.2

[renovate[bot]]

This PR contains the following updates:

Package	Update	Change
velero (source)	patch	7.1.1 -> 7.1.2

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Release Notes

vmware-tanzu/helm-charts (velero)

### [`v7.1.2`](https://togithub.com/vmware-tanzu/helm-charts/releases/tag/velero-7.1.2) [Compare Source](https://togithub.com/vmware-tanzu/helm-charts/compare/velero-7.1.1...velero-7.1.2) A Helm chart for velero

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