Add support for `x-amz-retry-after` header

[lauzadis]

Describe the feature

Retry logic should consider the value of the x-amz-retry-after if present. Internal specification: retry-after-header.md

Is your feature request related to a problem?

Currently we are inconsistent with other SDKs like Rust and Swift which support this header.

Proposed Solution

No response

Describe alternative solutions or features you've considered

No response

Acknowledge

• [ ] I may be able to implement this feature request

AWS SDK for Kotlin version

N/A

Platform (JVM/JS/Native)

N/A

Operating system and version

N/A