### 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_
AttributeValue="true",
            )
        dlq_url = sqs_create_queue(
            QueueName=dlq_name,
            Attributes={"FifoQueue": "true"},
        )
        dlq_arn = sqs_get_queue_arn(dlq_url)
        aws_client.sns.set_subscription_attributes(
            SubscriptionArn=subscription["SubscriptionArn"],
            AttributeName="RedrivePolicy",
            AttributeValue=json.dumps({"deadLetterTargetArn": dlq_arn}),
        )
        sns_allow_topic_sqs_queue(
            sqs_queue_url=dlq_url,
            sqs_queue_arn=dlq_arn,
            sns_topic_arn=topic_arn,
        )
        aws_client.sqs.delete_queue(QueueUrl=queue_url)
        message_group_id = "complexMessageGroupId"
        publish_batch_request_entries = [
            {
                "Id": "1",
                "MessageGroupId": message_group_id,
                "Message": "Test Message with two attributes",
                "Subject": "Subject",
                "MessageAttributes": {
                    "attr1": {"DataType": "Number", "StringValue": "99.12"},
                    "attr2": {"DataType": "Number", "StringValue": "109.12"},
                },
                "MessageDeduplicationId": "MessageDeduplicationId-1",