feat(aggregator): Add retry for GetOldTaskHash

[PatStiles]

Add Retryable Function for GetOldTaskHash

Description

Adds missing retries for GetOldTaskHash. Note we should consolidate the logic for different retries over.

How to test

run make test_go_retries

In devnet

1. make anvil_start_with_block_time
2. make aggregator_start
3. make operator_full_registration CONFIG_FILE=config-files/config-operator-1.yaml
4. make operator_start CONFIG_FILE=config-files/config-operator-1.yaml
5. make batcher_start_local
6. make telemetry_full_start

Once you have the system running, send proofs

7. make batcher_send_burst_groth16
8. Go to jaeger http://localhost:16686/search
9. You should see the traces correctly created and task verified

Type of change

• [x] New feature

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 batcher/docs/examples
  • [ ] This PR updates batcher and docs/examples to the newer version. This requires the operator are already updated to be compatible