LEVM: EIP-7702 Debug gas_mismatch

[fborello-lambda]

We are having some mismatches when running the ef-tests.

If we run:

make run-evm-ef-tests flags="--tests intrinsic_gas_cost.json"   

Only running the test that fails with 12500:

make run-evm-ef-tests flags="--tests intrinsic_gas_cost.json -- --specific_tests tests/prague/eip7702_set_code_tx/test_gas.py::test_intrinsic_gas_cost[fork_Prague-state_test-valid_True-multiple_valid_authorizations_single_signer]"

we get a mismatch of 12500 for the first failed test. It may be related to how we handle the refunded gas if the account is present in the trie

[lima-limon-inc]

This commit appears to fix this issue.

The problem was that we were only checking the DB if the signer address existed. BUT, we only update the Cache during authority tuple processing. So, in order to check if the account existed, we need to check both the db AND the cache.

[fborello-lambda]

In the end, all gas issues were solved with PR #1769 and commit 5553209