feat: use get_starknet_address

[enitrat]

• compute_starknet_address returns the value computed for an EVM address based on the uninitialized class hash
• address_registry returns the value stored in the Kakarot_evm_to_starknet_address storage var

We introduced in KakarotZero a get_evm_address entrypoint that reads the address registry, and if no entry, computes the evm address.

Use it throughout the codebase instead of compute_starknet_address.

[adrianvrj]

hey @enitrat do you need help with this one?