As an OpenShift engineer I never ship code to a z-stream which prevents z-stream rollbacks because we have release blocking jobs that validate z-stream rollbacks and execute post rollback e2e tests.

 Acceptance Criteria: Release blocking jobs which ensure z-stream rollbacks after upgrading from the initial GA version to the proposed z-stream payload. To be blocking in 4.10, test configuration can be validated using 4.9 as informing jobs