### Is there an existing issue for this?

- [X] I have searched the existing issues

### Current Behavior

When passed to SQS, keys of the messages attributes on SNS are renamed from StringValue to Value and DataType to Type.

### Expected Behavior

The keys should not be renamed

### How are you starting LocalStack?

With a docker-compose file

### Steps To Reproduce

#### How are you starting localstack (e.g., `bin/localstack` command, arguments, or `docker-compose.yml`)

    docker run localstack/localstack

#### Flow
 - Create a SQS Queue
 - Create a SNS Topic
 - Configure a Subscription of the new Topic that sends to the SQS queue (specify a raw delivery at true)
 - Publish a message to SNS Topic with attribute { DataType: "string", StringValue: "anything"}
 - Attributes are no more StringValue but just value. 

(can't provide more, I have issues with my awslocal, I got this issue with the PHP client initially)

### Environment

```markdown
- OS: Docker Desktop for mac
- LocalStack: 1.4
```


### Anything else?

The AWS SNS official documentation : https://docs.aws.amazon.com/sns/latest/api/API_MessageAttributeValue.html


MR for fix is coming
"""Register the platform endpointmessages retrospection endpoint as an internal LocalStack endpoint."""
    router.add(SNSServicePlatformEndpointMessagesApiResource())
def _format_platform_endpoint_messages(sent_messages: List[Dict[str, str]]):
    """
    This method format the messages to be more readable and undo the format change that was needed for Moto
    Should be removed once we refactor SNS.
    """
    validated_keys = [
        "TargetArn",
        "TopicArn",
        "Message",
        "MessageAttributes",
        "MessageStructure",
        "Subject",
        "MessageId",
    ]
    formatted_messages = []
    for sent_message in sent_messages:
        msg = {
            key: value if key != "Message" else json.dumps(value)
            for key, value in sent_message.items()
            if key in validated_keys
        }
        formatted_messages.append(msg)
    return formatted_messages
class SNSServicePlatformEndpointMessagesApiResource: