Support AWS-SDK since 3.286.2 breaking changes

[danielsimkus]

Why

Version 3.286.2 of aws-sdk-php changes the way QueueUrl is handled after switching SQS Client to the Json protocol.
https://github.com/aws/aws-sdk-php/releases/tag/3.286.2

This works fine if you're actually using an SQS queue-name only, but if you're using a different full URL for local (i.e. elasticmq) it forcibly attempts to hit the default AWS SQS url instead.

Also the versions 3 -> 3.288.1 are affected by the following security warning:

+-------------------+----------------------------------------------------------------------------------+
| Package           | aws/aws-sdk-php                                                                  |
| CVE               | CVE-2023-51651                                                                   |
| Title             | Potential URI resolution path traversal in the AWS SDK for PHP                   |
| URL               | https://nvd.nist.gov/vuln/detail/CVE-2023-51651                                  |
| Affected versions | >=3.0.0,<3.288.1                                                                 |
| Reported at       | 2023-11-22T00:00:00+00:00                                                        |
+-------------------+----------------------------------------------------------------------------------+

Therefore I've updated the composer json to require the latest safe release from aws-sdk-php

Thoughts before submitting for review

The way I've done it will more than likely break it for people that aren't using the full URL.
Ideally we would:

• Manually build it to the full AWS SQS url if it isn't already a url.
• Or, maybe more preferably, we only use Endpoint if it's actually a full URL (prefix + queue + suffix)

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