### 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
AttributeName="RawMessageDelivery",
            AttributeValue="false",
        )
        publish_response = aws_client.sns.publish(
            TopicArn=topic_arn,
            Message="text",
            MessageAttributes=attributes,
        )
        snapshot.match("publish-msg-json", publish_response)
        msg = aws_client.sqs.receive_message(
            QueueUrl=queue_url,
            AttributeNames=["All"],
            MessageAttributeNames=["All"],
            WaitTimeSeconds=3,
        )
        snapshot.match("json-delivery-msg-attrs", msg)
        # b
        # h
    @pytest.mark.only_localstack
    @pytest.mark.aws_validated
    @pytest.mark.parametrize("raw_message_delivery", [True, False])
    def test_subscribe_external_http_endpoint(
        self, sns_create_http_endpoint, raw_message_delivery, aws_client, snapshot
    ):
        def _get_snapshot_requests_response(response: requests.Response) -> dict:
            parsed_xml_body = xmltodict.parse(response.content)
            for root_tag, fields in parsed_xml_body.items():
                fields.pop("@xmlns", None)
                if "ResponseMetadata" in fields:
                    fields["ResponseMetadata"]["HTTPHeaders"] = dict(response.headers)