Update dependency aws-sdk to v2.503.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
aws-sdk	devDependencies	minor	2.501.0 -> 2.503.0

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Release Notes

aws/aws-sdk-js

v2.503.0

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• feature: MediaConvert: MediaConvert adds support for specifying priority (-50 to 50) on jobs submitted to on demand or reserved queues
• feature: Polly: Amazon Polly adds support for Neural text-to-speech engine.
• feature: Route53: Amazon Route 53 now supports the Middle East (Bahrain) Region (me-south-1) for latency records, geoproximity records, and private DNS for Amazon VPCs in that region.

v2.502.0

Compare Source

• feature: CodeCommit: This release supports better exception handling for merges.

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