nexusRepositoryManager update to 84.0.0-bb.1

Package Merge Request

Package Changes

https://repo1.dso.mil/big-bang/product/packages/nexus/-/blob/84.0.0-bb.1/CHANGELOG.md

Package MR

big-bang/product/packages/nexus!244

For Issue

Closes big-bang/product/packages/nexus#182

Upgrade Notices

"N/A"