Support for High Throughput mode for Delayed Delivery in FIFO Queues

[soujay]

Describe the feature.

In May 2021, AWS announced a new feature that enables high-throughput mode for FIFO queues in Amazon SQS, allowing customers to achieve up to 300 transactions per second (TPS) with batching and up to 3,000 TPS without batching.
We are currently not using this new feature for our delayed delivery in SQS. This issue is to investigate if the new feature can be used by enabling the high throughput mode for delayed delivery.

Additional Context

• Related: FIFO queues support #240

[mauroservienti]

High throughput can be enabled after the fact as an additional option. Given that, at the moment, this only impacts the "delay" queue, it's not worth changing the transport and CLI queue creation logic. Updating a FiFo queue to support high-throughput mode incurs no additional costs.