### 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
PlatformApplicationArn=app_arn, Token=short_uid()
        )["EndpointArn"]
        endpoint_arn_2 = aws_client.sns.create_platform_endpoint(
            PlatformApplicationArn=app_arn, Token=short_uid()
        )["EndpointArn"]
        sns_subscription(
            TopicArn=topic_arn,
            Protocol="application",
            Endpoint=endpoint_arn,
        )
        # e
        # h
        message = json.dumps({"APNS": json.dumps({"aps": {"content-available": 1}})})
        message_for_topic = {
            "default": "This is the default message which must be present when publishing a message to a topic.",
            "APNS": json.dumps({"aps": {"content-available": 1}}),
        }
        message_for_topic_string = json.dumps(message_for_topic)
        message_attributes = {
            "AWS.SNS.MOBILE.APNS.TOPIC": {
                "DataType": "String",
                "StringValue": "com.amazon.mobile.messaging.myapp",
            },
            "AWS.SNS.MOBILE.APNS.PUSH_TYPE": {
                "DataType": "String",
                "StringValue": "background",
            },
            "AWS.SNS.MOBILE.APNS.PRIORITY": {
                "DataType": "String",
                "StringValue": "5",