investigate L2 key handover test

[sbvegan]

Bug Description

While reviewing the op-deployer docs, we found the L2 PAO role was incorrectly set. The L2 ProxyAdminOwner standard check seemed to have given a false positive when the op-deployer/OPCM because the L2 key handover should’ve failed when generating a recent testnet. Can we please investigate testKeyHandover and make sure its working as expected?

Steps to Reproduce

1. Deploy a chain using op-deployer (before the bug was fixed)
2. Create the genesis file
3. Use superchain-registry for all the standard validation checks
4. Get false positive

Expected behavior

The L2 ProxyAdminOwner comparision to the standard L2 PAO role should fail.

Environment Information:

Configurations:

Logs:

Additional context

Related issue: #470

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