Byzantine tests for epoch transitions

[ss-es]

What is this task and why do we need to work on it?

We want to write byzantine tests for epoch transitions, to ensure that transitions proceed smoothly under various network conditions

What work will need to be done to complete this task?

No response

Are there any other details to include?

No response

What are the acceptance criteria to close this issue?

Byzantine tests are added

Making the tests pass is not necessarily in scope (failing tests should still be merged)

Branch work will be merged to (if not the default branch)

No response