### 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_
key = "mock_server_key"
        token = "mock_token"
        response = sns_create_platform_application(
            Name="firebase", Platform="GCM", Attributes={"PlatformCredential": key}
        )
        platform_app_arn = response["PlatformApplicationArn"]
        response = aws_client.sns.create_platform_endpoint(
            PlatformApplicationArn=platform_app_arn,
            Token=token,
        )
        endpoint_arn = response["EndpointArn"]
        message = {
            "GCM": '{ "notification": {"title": "Title of notification", "body": "It works" } }'
        }
        with pytest.raises(ClientError) as ex:
            aws_client.sns.publish(
                TargetArn=endpoint_arn, MessageStructure="json", Message=json.dumps(message)
            )
        assert ex.value.response["Error"]["Code"] == "InvalidParameter"
    @markers.aws.only_localstack
    def test_publish_to_platform_endpoint_is_dispatched(