Keycloak Istio Injection

Package Merge Request

Package Changes

Enables istio injection for Keycloak.

Package MR

https://repo1.dso.mil/platform-one/big-bang/apps/security-tools/keycloak/-/merge_requests/71

For Issue

Closes https://repo1.dso.mil/platform-one/big-bang/bigbang/-/issues/1204