feat(aggregation-mode): support keystores in cli

[MarcosNicolau]

Description

Adds support for keystores in aggregation mode cli.

How to test
0. Setup aggregation mode as usual

1. Create a test keystore:

cast wallet new /tmp/ test-keystore 

2. Test submit command with keystore:

# Fund keystore wallet
cast send --value 5ether <KEYSTORE_ADDRESS>  --private-key 0x59c6995e998f97a5a0044966f0945389dc9e86dae88c7a8412f4603b6b78690d

# Deposit in payment contract
cargo run --release --manifest-path aggregation_mode/cli/Cargo.toml -- deposit \
	 --keystore-path /tmp/test-keystore \
	 --network devnet \
	 --rpc-url http://localhost:8545

# Send proof
cargo run --manifest-path aggregation_mode/cli/Cargo.toml -- submit sp1 \
		--proof scripts/test_files/sp1/sp1_fibonacci_5_0_0.proof \
		--vk scripts/test_files/sp1/sp1_fibonacci_5_0_0_vk.bin \
		--keystore-path /tmp/test-keystore

3. Do the same without keystore with the makefile commands:

make agg_mode_gateway_send_payment
make agg_mode_gateway_send_sp1_proof

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