harbor update to 1.18.0-bb.4

Package Merge Request

Package Changes

https://repo1.dso.mil/big-bang/product/packages/harbor/-/blob/1.18.0-bb.4/CHANGELOG.md

Package MR

big-bang/product/packages/harbor!201 (merged)

For Issue

Closes big-bang/product/packages/harbor#147 (closed)

Upgrade Notices

N/A