Bumping velero chart version and image tags

Package Merge Request

Package Changes

• Bumped chart version to 2.29.0
• Bumped Velero image tag to v1.8.1
• Bumped Velero aws image tag to v1.4.1
• Bumped Velero azure image tag to v1.4.1
• Bumped Velero helper image tag to v1.8.1

Package MR

• https://repo1.dso.mil/platform-one/big-bang/apps/cluster-utilities/velero/-/merge_requests/42

For Issue

Closes https://repo1.dso.mil/platform-one/big-bang/apps/cluster-utilities/velero/-/issues/22