fix(executor): Don't generate a diff when running tests

[clabby]

Overview

Tars up the test fixtures for kona-executor and uses temp directories to run the stateless L2 block executor tests. This prevents a diff from being created when the tests are ran for the kona-executor crate.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.4%. Comparing base (66e94c6) to head (8a7b8cc).
Report is 6 commits behind head on main.

✅ All tests successful. No failed tests found.

Additional details and impacted files

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