new(tests): add tests for EOF container prefix

[chfast]

🗒️ Description

More systematic way to test cases focused on 3 first bytes of EOF container. This actually replaces many "example" invalid EOF tests.

🔗 Related Issues

#598

✅ Checklist

• All: Set appropriate labels for the changes.
• All: Considered squashing commits to improve commit history.
• All: Added an entry to CHANGELOG.md.
• All: Considered updating the online docs in the ./docs/ directory.
• Tests: All converted JSON/YML tests from ethereum/tests have been added to converted-ethereum-tests.txt.
• Tests: Included the type and version of evm t8n tool used to locally execute test cases: e.g., ref with commit hash or geth 1.13.1-stable-3f40e65.
• Tests: Ran mkdocs serve locally and verified the auto-generated docs for new tests in the Test Case Reference are correctly formatted.

[marioevz]

LGTM. I think we should also take the opportunity and remove the test cases we are covering here from tests/prague/eip7692_eof_v1/eip3540_eof_v1/container.py.

[chfast]

take the opportunity and remove the test cases we are covering here from tests/prague/eip7692_eof_v1/eip3540_eof_v1/container.py.

done.