harbor update to 1.18.0-bb.2

Package Merge Request

Package Changes

https://repo1.dso.mil/big-bang/product/packages/harbor/-/blob/1.18.0-bb.2/CHANGELOG.md

Package MR

big-bang/product/packages/harbor!199 (merged)

For Issue

https://repo1.dso.mil/big-bang/bigbang/-/issues/2904

Upgrade Notices

N/A