### 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_
self, sqs_create_queue, sns_create_topic, sns_create_sqs_subscription, snapshot, aws_client
    ):
        topic_arn = sns_create_topic()["TopicArn"]
        queue_url_with_filter = sqs_create_queue()
        subscription_with_filter = sns_create_sqs_subscription(
            topic_arn=topic_arn, queue_url=queue_url_with_filter
        )
        subscription_with_filter_arn = subscription_with_filter["SubscriptionArn"]
        queue_url_no_filter = sqs_create_queue()
        subscription_no_filter = sns_create_sqs_subscription(
            topic_arn=topic_arn, queue_url=queue_url_no_filter
        )
        subscription_no_filter_arn = subscription_no_filter["SubscriptionArn"]
        filter_policy = {"attr1": [{"numeric": [">", 0, "<=", 100]}]}
        aws_client.sns.set_subscription_attributes(
            SubscriptionArn=subscription_with_filter_arn,
            AttributeName="FilterPolicy",
            AttributeValue=json.dumps(filter_policy),
        )
        response_attributes = aws_client.sns.get_subscription_attributes(
            SubscriptionArn=subscription_with_filter_arn
        )
        snapshot.match("subscription-attributes-with-filter", response_attributes)
        response_attributes = aws_client.sns.get_subscription_attributes(
            SubscriptionArn=subscription_no_filter_arn
        )
        snapshot.match("subscription-attributes-no-filter", response_attributes)
        sqs_wait_time = 4 if is_aws_cloud() else 1