### 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
self,
        context: RequestContext,
        subscription_arn: subscriptionARN,
        attribute_name: attributeName,
        attribute_value: attributeValue = None,
    ) -> None:
        store = self.get_store(account_id=context.account_id, region_name=context.region)
        sub = store.subscriptions.get(subscription_arn)
        if not sub:
            raise NotFoundException("Subscription does not exist")
        validate_subscription_attribute(
            attribute_name=attribute_name,
            attribute_value=attribute_value,
            topic_arn=sub["TopicArn"],
        )
        try:
            call_moto(context)
        except CommonServiceException as e:
            
            if e.code == "InvalidParameter":
                raise InvalidParameterException(e.message)
            raise
        if attribute_name == "FilterPolicy":
            store = self.get_store(account_id=context.account_id, region_name=context.region)
            store.subscription_filter_policy[subscription_arn] = json.loads(attribute_value)
        sub[attribute_name] = attribute_value
    def confirm_subscription(