### 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_
snapshot.add_transformer(snapshot.transform.sns_api())
@pytest.fixture
def sns_create_platform_application(aws_client):
    platform_applications = []
    def factory(**kwargs):
        if "Name" not in kwargs:
            kwargs["Name"] = f"platform-app-{short_uid()}"
        response = aws_client.sns.create_platform_application(**kwargs)
        platform_applications.append(response["PlatformApplicationArn"])
        return response
    yield factory
    for platform_application in platform_applications:
        endpoints = aws_client.sns.list_endpoints_by_platform_application(
            PlatformApplicationArn=platform_application
        )
        for endpoint in endpoints["Endpoints"]:
            try:
                aws_client.sns.delete_endpoint(EndpointArn=endpoint["EndpointArn"])
            except Exception as e:
                LOG.debug(
                    "Error cleaning up platform endpoint '%s' for platform app '%s': %s",
                    endpoint["EndpointArn"],
                    platform_application,
                    e,
                )
        try:
            aws_client.sns.delete_platform_application(PlatformApplicationArn=platform_application)
        except Exception as e:
            LOG.debug("Error cleaning up platform application '%s': %s", platform_application, e)
class TestSNSTopicCrud: