neuvector update to 2.8.6-bb.2

Package Merge Request

Package Changes

https://repo1.dso.mil/big-bang/product/packages/neuvector/-/blob/2.8.6-bb.2/CHANGELOG.md

Package MR

big-bang/product/packages/neuvector!207 (merged)

For Issue

Closes (big-bang/product/packages/neuvector#187 (closed))

Upgrade Notices

With the change to pass-through pattern there is an additional layer required to pass values to the child package, pass values with the following pattern:

neuvector:
 values:
  upstream:
    key: value

The keys that won't need to move are those under domain, global, networkPolicies, istio, and bbtests.