istioOperator update to 1.20.4-bb.1

Package Merge Request

Package Changes

https://repo1.dso.mil/big-bang/product/packages/istio-operator/-/blob/1.20.4-bb.1/CHANGELOG.md

Package MR

big-bang/product/packages/istio-operator!122 (merged)

For Issue

Closes big-bang/product/packages/istio-operator#78 (closed)

Upgrade Notices

N/A