Consider adding an e2e test with the execution specs

[kevaundray]

Similar to https://github.com/paradigmxyz/reth/blob/6f8082af34cf3eb28e77a288819df46d33d2b56e/testing/ef-tests/tests/tests.rs#L90

It would be good to have e2e tests that show the full workflow using the execution spec tests

[CPerezz]

This likely collides/would_benefit_from paradigmxyz/reth#10595

Nevertheless, Agree would be nice to be able to make this integration and test this more heavily.