### 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
raise NotFoundException("Endpoint not specified in subscription")
        if protocol not in sns_constants.SNS_PROTOCOLS:
            raise InvalidParameterException(
                f"Invalid parameter: Amazon SNS does not support this protocol string: {protocol}"
            )
        elif protocol in ["http", "https"] and not endpoint.startswith(f"{protocol}://"):
            raise InvalidParameterException(
                "Invalid parameter: Endpoint must match the specified protocol"
            )
        elif protocol == "sms" and not is_e164(endpoint):
            raise InvalidParameterException(f"Invalid SMS endpoint: {endpoint}")
        elif protocol == "sqs":
            try:
                parse_arn(endpoint)
            except InvalidArnException:
                raise InvalidParameterException("Invalid parameter: SQS endpoint ARN")
        if ".fifo" in endpoint and ".fifo" not in topic_arn:
            raise InvalidParameterException(
                "Invalid parameter: Invalid parameter: Endpoint Reason: FIFO SQS Queues can not be subscribed to standard SNS topics"
            )
        elif ".fifo" in topic_arn and ".fifo" not in endpoint:
            raise InvalidParameterException(
                "Invalid parameter: Invalid parameter: Endpoint Reason: Please use FIFO SQS queue"
            )
        if attributes:
            for attr_name, attr_value in attributes.items():
                validate_subscription_attribute(
                    attribute_name=attr_name, attribute_value=attr_value, topic_arn=topic_arn
                )