### 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_
kwargs = {}
            if attributes is not None:
                kwargs["Attributes"] = attributes
            response = aws_client.sns.subscribe(
                TopicArn=topic_arn,
                Protocol="sqs",
                Endpoint=queue_arn,
                ReturnSubscriptionArn=True,
                **kwargs,
            )
            return response
        subscribe_resp = subscribe_queue_to_topic(
            {
                "RawMessageDelivery": "true",
            }
        )
        snapshot.match("subscribe", subscribe_resp)
        get_attrs_resp = aws_client.sns.get_subscription_attributes(
            SubscriptionArn=subscribe_resp["SubscriptionArn"]
        )
        snapshot.match("get-sub-attrs", get_attrs_resp)
        subscribe_resp = subscribe_queue_to_topic(
            {
                "RawMessageDelivery": "true",
            }