Update aws/aws-sdk-php requirement from ~3.302.0 to ~3.315.6

[dependabot[bot]]

Updates the requirements on aws/aws-sdk-php to permit the latest version.

Release notes

Sourced from aws/aws-sdk-php's releases.

Version 3.315.6

• Aws\ECR - This release for Amazon ECR makes change to bring the SDK into sync with the API.
• Aws\PaymentCryptographyData - Added further restrictions on logging of potentially sensitive inputs and outputs.
• Aws\QBusiness - Add personalization to Q Applications. Customers can enable or disable personalization when creating or updating a Q application with the personalization configuration.
• Aws\ACM - Documentation updates, including fixes for xml formatting, broken links, and ListCertificates description.

Commits

• 69e19f7 3.315.6 release
• ce6a4fb Update models for release
• 3e6d619 3.315.5 release
• 1f95d95 Update models for release
• 8d2cf34 3.315.4 release
• dc7b731 Update models for release
• 3f9ec5e 3.315.3 release
• 610a5fe Update models for release
• 44aa090 str_replace fix (#2643)
• 0d9911b 3.315.2 release
• Additional commits viewable in compare view

Most Recent Ignore Conditions Applied to This Pull Request

| Dependency Name | Ignore Conditions | | --- | --- | | aws/aws-sdk-php | [>= 3.307.a, < 3.308] |

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[dependabot[bot]]

Superseded by #1085.