metrics-server update to 3.8.4-bb.0

Package Merge Request

Package Changes

https://repo1.dso.mil/big-bang/product/packages/metrics-server/-/blob/3.8.4-bb.0/CHANGELOG.md

Package MR

big-bang/product/packages/metrics-server!17 (merged)

For Issue

Closes big-bang/product/packages/metrics-server#14 (closed)