kinesis: make writeToKinesis function tail recursive

[benjben]

At the moments there are 2 different levels of backoff retry :

• One in case PutRecords request fails, orchestrated by cats-retry
• One in case PutRecords succeeds but contains some failures, orchestrated "manually"

Thanks to trampolining we should be safe from stack overflows, but still it would be great to make the function tail recursive (requires to drop .retryingOnAllErrors). This would also guarantee that a record is retried only maxRetries even if the 2 types of retries are imbricated, which is not the case at the moment.