anchore update to 2.9.0-bb.6

Package Merge Request

Package Changes

https://repo1.dso.mil/big-bang/product/packages/anchore-enterprise/-/blob/2.9.0-bb.6/CHANGELOG.md

Package MR

big-bang/product/packages/anchore-enterprise!277 (merged)

For Issue

Closes big-bang/product/packages/anchore-enterprise#178 (closed)

Upgrade Notices

N/A