Draft: istioGateway update to 1.25.2-bb.0

Package Merge Request

Package Changes

https://repo1.dso.mil/big-bang/product/packages/istio-gateway/-/blob/1.25.2-bb.0/CHANGELOG.md

Package MR

big-bang/product/packages/istio-gateway!34 (merged)

For Issue

Closes (link to issue here)

Upgrade Notices

(Include any relevant notes about upgrades here or write "N/A" if there are none)