fix(spec,tests): Change BAL to List[AccountChange]

[gurukamath]

🗒️ Description

The EIP does the follwoing updates

1. Defines BlockAccessList = List[AccountChanges]. The specs currently have block access list as a dataclass which has an attribute calles account changes which is this list. This inconsistency creates issue when we try to decode amsterdam block rlp to block.
2. The EIP also consumes the newly created amsterdam json fixtures in json_infra

✅ Checklist

• All: Ran fast tox checks to avoid unnecessary CI fails, see also Code Standards and Enabling Pre-commit Checks:

  uvx tox -e static

• All: PR title adheres to the repo standard - it will be used as the squash commit message and should start type(scope):.

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[codecov]

Codecov Report

❌ Patch coverage is 72.72727% with 3 lines in your changes missing coverage. Please review.
⚠️ Please upload report for BASE (eips/amsterdam/eip-7928@67c1983). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
...um/forks/amsterdam/block_access_lists/rlp_utils.py	25.00%	3 Missing ⚠️

Additional details and impacted files

@@                    Coverage Diff                     @@
##             eips/amsterdam/eip-7928    #1844   +/-   ##
==========================================================
  Coverage                           ?   86.62%           
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  Files                              ?      797           
  Lines                              ?    47984           
  Branches                           ?     4341           
==========================================================
  Hits                               ?    41566           
  Misses                             ?     5843           
  Partials                           ?      575           

Flag	Coverage Δ
unittests	86.62% <72.72%> (?)

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[fselmo]

@gurukamath I added the bal in the genesis here and fixed the fill with your changes. Lmk what you think but this lgtm.

[gurukamath]

@gurukamath I added the bal in the genesis here and fixed the fill with your changes. Lmk what you think but this lgtm.

LGTM! However, the genesis RLP check is enabled now for json_infra but the fixtures don't yet have the changes you made. So the json_infra blockchain tests will continue to fail until we upgrade to a newer release which has the genesis fix. I'm ok with merging this in and then updating to a new release in another PR

[fselmo]

I'm ok with merging this in and then updating to a new release in another PR

Right, this was my expectation here. We plan to make a new release this week 👍🏼