feat(l2): implement state diffs #1015
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Motivation
With this PR, we now send the state diff (i.e. account updates, deposits and withdrawals) via EIP-4844 blobs. This is cheaper than using EIP-1559 calldata.
Description
The Proposer now re-exceutes the block to get the account updates. With this and deposits/withdrawals info, it generates a Blob encoding the diff as mentioned in
crates/l2/docs/state_diffs.mdand send it in the commitment step to L1.For now, we'll use Ethereum's c-kzg-4844 library to do KZG operations. The idea is to change it with Lambdaworks later.
Closes #729