### 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
call_moto(context)
        store = self.get_store(account_id=context.account_id, region_name=context.region)
        
        subscription = store.subscriptions.get(subscription_arn)
        if not subscription:
            
            return
        if subscription["Protocol"] in ["http", "https"]:
            
            
            subscription_token = encode_subscription_token_with_region(region=context.region)
            message_ctx = SnsMessage(
                type="UnsubscribeConfirmation",
                token=subscription_token,
                message=f"You have chosen to deactivate subscription {subscription_arn}.\nTo cancel this operation and restore the subscription, visit the SubscribeURL included in this message.",
            )
            publish_ctx = SnsPublishContext(
                message=message_ctx, store=store, request_headers=context.request.headers
            )
            self._publisher.publish_to_topic_subscriber(
                publish_ctx,
                topic_arn=subscription["TopicArn"],
                subscription_arn=subscription_arn,
            )
        store.topic_subscriptions[subscription["TopicArn"]].remove(subscription_arn)
        store.subscription_filter_policy.pop(subscription_arn, None)
        store.subscriptions.pop(subscription_arn, None)
    def get_subscription_attributes(