Cannot generate lazy proxy for service "aws.s3"

### Describe the bug

When running any Symfony command, the following error happens:
```
In LazyServiceDumper.php line 138:

Cannot generate lazy proxy for service "aws.s3".

In ProxyHelper.php line 268:

Cannot generate lazy proxy: method "Aws\S3\S3Client::getSignatureProvider()" is final.

```

### Regression Issue

- [x] Select this option if this issue appears to be a regression.

### Expected Behavior

`aws.s3` Symfony service is loaded without any errors.

### Current Behavior

When running any Symfony command, the following error happens:
```
In LazyServiceDumper.php line 138:

Cannot generate lazy proxy for service "aws.s3".

In ProxyHelper.php line 268:

Cannot generate lazy proxy: method "Aws\S3\S3Client::getSignatureProvider()" is final.
```

### Reproduction Steps

Install the following versions inside a Symfony 6.4 project with PHP 8.4:
* aws/aws-sdk-php (3.356.9)
* aws/aws-sdk-php-symfony (2.8.0)

Inject the `@aws.s3` service as argument to any Symfony service.

Run `bin/console debug:container`

### Possible Solution

Make `Aws\S3\S3Client::getSignatureProvider()` ([Code](https://github.com/aws/aws-sdk-php/blob/42e1ac9cbb06b98ead34e32bd565f262161b77ab/src/AwsClient.php#L385)) non-final

### Additional Information/Context

_No response_

### SDK version used

3.356.9

### Environment details (OS name and version, etc.)

Ubuntu 24.04, PHP 8.4, Symfony 6.4

Reproduce the failure in a Symfony 6.4 project with PHP 8.4 using the listed AWS SDK versions, then inspect LazyServiceDumper.php line 138, ProxyHelper.php line 268, and AwsClient.php around line 385. Run bin/console debug:container; done means the aws.s3 service loads without the lazy-proxy error.

Written by the indexing model from the issue text.