fix(makefile): load operator address correctly

Description

How To Test

make ethereum_package_start

make batcher_start_ethereum_package

make aggregator_start_ethereum_package ENVIRONMENT=devnet

make operator_full_registration_and_start_ethereum_package ENVIRONMENT=devnet

make batcher_send_proof_with_random_address PROOF_TYPE=risc0

Type of change

• Bug fix

Checklist

• “Hotfix” to testnet, everything else to staging
• Linked to Github Issue
• This change depends on code or research by an external entity
  • Acknowledgements were updated to give credit
• Unit tests added
• This change requires new documentation.
  • Documentation has been added/updated.
• This change is an Optimization
  • Benchmarks added/run
• Has a known issue
  • Link to the open issue addressing it
• If your PR changes the Operator compatibility (Ex: Upgrade prover versions)
  • This PR adds compatibility for operator for both versions and do not change crates/docs/examples
  • This PR updates batcher and docs/examples to the newer version. This requires the operator are already updated to be compatible