velero update to 6.0.0-bb.6

Package Merge Request

Package Changes

https://repo1.dso.mil/big-bang/product/packages/velero/-/blob/6.0.0-bb.6/CHANGELOG.md

Package MR

big-bang/product/packages/velero!139 (merged)

For Issue

For big-bang/product/packages/velero#89 (closed)

Upgrade Notices

N/A