Update dependency aws/aws-sdk-php to v3.322.9

This MR contains the following updates:

Package	Type	Update	Change
aws/aws-sdk-php (source)	require	patch	3.322.8 -> 3.322.9

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Release Notes

aws/aws-sdk-php (aws/aws-sdk-php)

v3.322.9

Compare Source

• Aws\ - Adds nullable operator to implicit nullable type hints.
• Aws\RDS - This release provides additional support for enabling Aurora Limitless Database DB clusters.
• Aws\CodeArtifact - Add support for the dual stack endpoints.
• Aws\BedrockAgent - This release adds support to stop an ongoing ingestion job using the StopIngestionJob API in Agents for Amazon Bedrock.

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