### Is there an existing issue for this?

- [X] I have searched the existing issues and read the documentation

### Question

I'm trying to implement locally DLQ for SNS with SQS, the problem is, on localstack SQS DLQ message coming from SNS have different format than what you would expect in AWS

When I tested locally I received the message in the following format:

`"{\"Action\": [\"Publish\"], \"Message\": [\"(The original SNS message body here)\"], \"TopicArn\": [\"the topic arn in localstack\"], \"Version\": [\"2010-03-31\"]}"`

I'm using local stack 0.14.0 with docker-compose

my docker-compose file looks like this:


```
 aws:
    image: localstack/localstack:0.14.0
    restart: always
    volumes:
      - ./docker-mounts/localstack:/docker-entrypoint-initaws.d
    environment:
      - SERVICES=sqs,s3,ses,sns
      - DEFAULT_REGION=eu-west-1
      - HOSTNAME_EXTERNAL=aws.localtest.local
      - AWS_ACCESS_KEY_ID=foo
      - AWS_SECRET_ACCESS_KEY=bar
      - AWS_DEFAULT_REGION=eu-west-1
```

### Anything else?

_No response_
"""
    Returns the integer value of the ApproximateNumberOfMessages queue attribute.
    :param sqs_client: the boto3 client
    :param queue_url: the queue URL
    :return: the ApproximateNumberOfMessages converted to int
    """
    response = sqs_client.get_queue_attributes(
        QueueUrl=queue_url, AttributeNames=["ApproximateNumberOfMessages"]
    )
    return int(response["Attributes"]["ApproximateNumberOfMessages"])
class TestSqsProvider:
    @pytest.mark.only_localstack
    def test_get_queue_url_contains_request_host(self, sqs_client, sqs_create_queue, monkeypatch):
        monkeypatch.setattr(config, "SQS_ENDPOINT_STRATEGY", "off")
        queue_name = "test-queue-" + short_uid()
        sqs_create_queue(QueueName=queue_name)
        queue_url = sqs_client.get_queue_url(QueueName=queue_name)["QueueUrl"]
        account_id = constants.TEST_AWS_ACCOUNT_ID
        host = config.get_edge_url()
        
        assert queue_url == f"{host}/{account_id}/{queue_name}"
        
        host = f"http://127.0.0.1:{config.EDGE_PORT}"
        client = aws_stack.connect_to_service("sqs", endpoint_url=host)
        queue_url = client.get_queue_url(QueueName=queue_name)["QueueUrl"]
        assert queue_url == f"{host}/{account_id}/{queue_name}"
    def test_list_queues(self, sqs_client, sqs_create_queue):