Coordinator Integration Test - Account Manager helper

[jpnovais]

Impact

Environments: CI/Local

Describe the bug

Sometimes coordinator's integration test fail with

Response.Error(code=-32000, message=Replacement transaction underpriced)

Response.Error(code=-32001, message=Nonce too low)

This comes from WhaleBasedAccountManager. It must handle and retry the request better.

    java.lang.RuntimeException: Failed to send funds from accAddress=9d14ef14d4c90436a062efd7dc8354a7ded9712e, accBalance=0x130d48919d5226beb809, accPrivKey=0x...f152866a, error: Response.Error(code=-32001, message=Nonce too low)
        at net.consensys.zkevm.ethereum.WhaleBasedAccountManager.generateAccounts(AccountManager.kt:149)
        at net.consensys.zkevm.ethereum.L2AccountManager.generateAccounts(AccountManager.kt)

Steps to Reproduce

No deterministic way to reproduce.