### 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
@pytest.fixture
    def sns_primary_client(self, aws_client):
        return aws_client.sns
    @pytest.fixture
    def sns_secondary_client(self, aws_client_factory):
        """
        Create a boto client with secondary test credentials and region.
        """
        return aws_client_factory.get_client(
            "sns",
            aws_access_key_id=SECONDARY_TEST_AWS_ACCESS_KEY_ID,
            aws_secret_access_key=SECONDARY_TEST_AWS_SECRET_ACCESS_KEY,
        )
    def test_cross_account_access(self, sns_primary_client, sns_secondary_client):