Add support for zkSync 2.0 to the crypto-batch-payment tool

[iglesiasbrandon]

Describe the feature or problem you'd like to solve

crypto batch payment tool only supports zkSync 1.0 at the moment; 2.0 is getting released in the next 30-90 days, so we need to add support for 2.0 into the tool so that we can start to utilize it when it's in production for our node operator payments.

Acceptance Criteria

• we can make zksync 2.0 payments on test net
• make the paymaster address configurable

Notes

• https://github.com/matter-labs/zksync-era/blob/f5a36684b8c2088d36308bad86643bc7ab3d6a78/core/lib/types/src/transaction_request.rs#L522

[iglesiasbrandon]

From @elek, currently blocked by https://github.com/zksync-sdk/zksync2-go/issues/3

[elek]

https://github.com/storj/crypto-batch-payment/pull/2

[shaupt131]

Do we still need a follow-up ticket to check the number of confirmations after a transaction?

[elek]

Do we still need a follow-up ticket to check the number of confirmations after a transaction?

Yep. But it's not ZkSync specific (we neither do any check for Ethereum). And based on my understanding it's not so urgent...