### Is there an existing issue for this?

- [X] I have searched the existing issues

### Current Behavior

It seems that it is possible to receive sns message in an sqs listener if there is a filterpolicy in place for null value in a message attribute, and a message is being sent without the message attribute.

### Expected Behavior

Don't recieve these type of messages

### How are you starting LocalStack?

With a docker-compose file

### Steps To Reproduce

`sns subscribe --topic-arn "demoTopicArn"  --protocol sqs --notification-endpoint "demoSqsEndpoint" --attributes '{"RawMessageDelivery": "true"}'`
`sns set-subscription-attributes --subscription-arn demoSubsArn --attribute-name FilterPolicy --attribute-value '{"testForNull": [null,{"anything-but": ["notgood"]}]}'`
`sns publish --topic-arn demoTopicArn --message "testforrecieval"`
`sqs receive-message --queue-url  "demoUrl"`

### Environment

```markdown
- OS: macOS 13.6
- LocalStack: 2.2.0
```


### Anything else?

_No response_
MessageAttributes={"attr1": {"DataType": "String.", "StringValue": "prefixed-1"}},
            )
        snapshot.match("publish-error", e.value.response)
        with pytest.raises(ClientError) as e:
            aws_client.sns.publish(
                TopicArn=topic_arn,
                Message="test message",
                MessageAttributes={
                    "attr1": {"DataType": "Stringprefixed", "StringValue": "prefixed-1"}
                },
            )
        snapshot.match("publish-error-2", e.value.response)
        response = aws_client.sns.publish(
            TopicArn=topic_arn,
            Message="test message",
            MessageAttributes={
                "attr1": {"DataType": "String.prefixed", "StringValue": "prefixed-1"}
            },
        )
        snapshot.match("publish-ok-1", response)
        response = aws_client.sns.publish(
            TopicArn=topic_arn,
            Message="test message",
            MessageAttributes={
                "attr1": {"DataType": "String.  prefixed.", "StringValue": "prefixed-1"}
            },
        )
        snapshot.match("publish-ok-2", response)
    @markers.aws.validated
    def test_message_structure_json_to_sqs(