feat: handle 4844 fee

[mattsse]

blocked by #411

ref #403

closes #377

This is not ideal but this at least sets a blob fee value for 4844 txs (txs with a sidecar)

This is not ideal for a few reasons:

• This does not estimate an appropriate blob fee and instead uses the value of the next block, if blob space is congested this will not result in timely inclusion (to do this we really need eth_feeHistory)
• Once all clients serve blob fee data in eth_feeHistory this can all be done with one eth_feeHistory request

I think we should consider customizing the gas layer so a custom estimator can be configured

cc @anna-carroll