fix mapping of disabled request retry for s3 crt client

[SergeyRyabinin]

Issue #, if available:
Unable to disable request retry on S3 CRT client
#2594
https://github.com/awslabs/aws-c-io/pull/694/files
Description of changes:
CRT fixed the support of disabling retries by creating an explicit no retry strategy (instead of using the standard one), so SDK needs to use it.
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• Checked if this PR is a breaking (APIs have been changed) change.
• Checked if this PR will not introduce cross-platform inconsistent behavior.
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