### 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
    ) -> GetSubscriptionAttributesResponse:
        store = self.get_store(account_id=context.account_id, region_name=context.region)
        sub = store.subscriptions.get(subscription_arn)
        if not sub:
            raise NotFoundException(f"Subscription with arn {subscription_arn} not found")
        removed_attrs = ["sqs_queue_url"]
        if "FilterPolicyScope" in sub and "FilterPolicy" not in sub:
            removed_attrs.append("FilterPolicyScope")
        elif "FilterPolicy" in sub and "FilterPolicyScope" not in sub:
            sub["FilterPolicyScope"] = "MessageAttributes"
        attributes = {k: v for k, v in sub.items() if k not in removed_attrs}
        return GetSubscriptionAttributesResponse(Attributes=attributes)
    def list_subscriptions(