test: support scroll l2 trace in integration-tests/mainnet.rs

[lispc]

we must discard prev_state_root/post_state_root in l1 block.
// zhuo: some constrains are invalid (eip2930 fee)

[noel2004]

An idea is to start with raw tx rather than geth traces. It's kinda like what we do in TestCtx

[lispc]

theoretically we can only test first tx inside block since you cannot fetch state BEFORE TX instead of before block?

[lispc]

lower priority now