Benchmarking on ETH proofs

To run benchmarking with ETH proofs, you'll need to:

1. Set the following environment variables:

   export ETH_PROOFS_ENDPOINT="https://staging--ethproofs.netlify.app/api/v0"
   export ETH_PROOFS_API_TOKEN=<your_api_token>
   export RPC_URL=<your_eth_mainnet_rpc>

2. Run the benchmarking recipe:

   # Run with default cluster ID (1) and block interval (100)
   just run-eth-proofs
   
   # Run with custom cluster ID and block interval
   just run-eth-proofs 5 600

This will continuously:

• Fetch the latest block number
• Round it down to the nearest 100
• Generate a proof and submit its proving time
• Sleep for the specified duration before the next iteration