fix(executor): Withdrawals root

[clabby]

Overview

Fixes the withdrawals root feature of Isthmus. It's not currently enabled, but there was also a logic flaw where it fetched the L2ToL1MessagePasser's storage root for the parent block, not the current block.

[codecov]

Codecov Report

Attention: Patch coverage is 52.94118% with 8 lines in your changes missing coverage. Please review.

Project coverage is 88.8%. Comparing base (b3ce5ee) to head (c5c62fa).
Report is 1 commits behind head on main.

✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
crates/executor/src/executor/mod.rs	11.1%	8 Missing ⚠️

Additional details and impacted files

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[mattsse]

btw

the trieaccount looks identical to

https://github.com/alloy-rs/trie/blob/main/src/account.rs

[clabby]

btw

the trieaccount looks identical to

https://github.com/alloy-rs/trie/blob/main/src/account.rs

Nice. We'll de-dup that.

[clabby]

@mattsse #975