Gloas: re-enable late block reorgs

[michaelsproul]

Description

We have disabled late block reorgs for now, in this PR:

• Update database and block replayer to handle payload envelopes #8886

Potuz is talking about some of the complexities of this on Eth R&D at the moment. I think we can start building it out once we have fork choice and the rest of the beacon chain DB changes nailed down. Until then it is an optional luxury.