hotfix: min_batch_size to send 1000 proofs

[uri-99]

Feat min_batch_size in batcher

Warning

This PR involves a change in config-batcher.yaml

Description

This PR was made to make possible the submition of single batches of a declared size.

The need arises when we want to send a single batch of 1000 proofs. Without this feature it is very error-prone, which in mainnet means funds spent in an unintended way.

To test

• Run setup locally
• send different amount of proofs, verifying only batches of size at least N are built and submitted

Type of change

• 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

[MarcosNicolau]

Works for me! Maybe we can add modify the message to something like: Current batch has N proofs. Min is X proofs. Waiting for more proofs....