Pull Request Overview

This PR updates the S3AdapterFactory to handle the deprecation of Aws\Handler\GuzzleV6\GuzzleHandler by implementing backward compatibility support. The change allows the factory to use the newer Aws\Handler\Guzzle\GuzzleHandler when available while falling back to the deprecated version.

• Removes direct import of deprecated GuzzleV6\GuzzleHandler
• Adds runtime class existence check to choose appropriate handler
• Maintains backward compatibility with older AWS SDK versions

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