Anchore: Update redis subchart to use OCI

Package Merge Request

Package Changes

https://repo1.dso.mil/platform-one/big-bang/apps/security-tools/anchore-enterprise/-/blob/1.20.0-bb.2/CHANGELOG.md

Package MR

https://repo1.dso.mil/platform-one/big-bang/apps/security-tools/anchore-enterprise/-/merge_requests/139

For Issue

Closes https://repo1.dso.mil/platform-one/big-bang/apps/security-tools/anchore-enterprise/-/issues/85