refactor(rpc_client): const number of retries for send and confirm transaction

[hrls]

Summary of Changes

RpcClient::send_and_confirm_transaction body was refactored for re-sending transaction after some number of failed attempts receiving previous transaction status. Currently number of retries is 1, so function do the same as the current one.

Based on #18389

[codecov]

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The diff coverage is 87.4%.

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[mvines]

Thanks!

I realized that the logic for expiring a transaction here is wrong (predates your change), and wrote up #18426 about it. Would you be interested in fixing this up since you're already interested in improving this function? If not no big deal, I'll take care of it sometime