feat: add aggregator quorum reached and task responded latency gauges

[JulianVentura]

Add latency gauges to aggregator

Description

This PR adds quorum reached and task responded latency gauges to the grafana dashboard.

How to test

1. Start all services locally, including the metrics
2. Start sending proofs
3. Go to the end of "System Data" dashboard, you should see two new panels showing latencies for both quorum reached and task responded.

Note: If you run with anvil, these latencies will show always the same. For a more real scenario, you should try with ethereum package.

Type of change

Please delete options that are not relevant.

• New feature
• Bug fix
• Optimization
• Refactor

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

[PatStiles]

Ran locally and metrics were displayed

[avilagaston9]

LGTM!