If you attempt to send a message to a FIFO queue with a request that contains the `DelaySeconds` parameter, the request fails with an `InvalidParameterValue` response.

This is actually a problem with ElasticMQ, but I'm creating an issue here to track that the version localstack is using gets updated if/when a fix is released.

More Information: https://github.com/softwaremill/elasticmq/issues/273
fifo_queue = 'my-queue.fifo'
        queue_info = self.client.create_queue(QueueName=fifo_queue, Attributes={'FifoQueue': 'true'})
        queue_url = queue_info['QueueUrl']
        
        self.assertIn(fifo_queue, queue_url)
        
        self.client.delete_queue(QueueUrl=queue_url)
    def test_set_queue_policy(self):
        queue_name = 'queue-%s' % short_uid()
        queue_info = self.client.create_queue(QueueName=queue_name)
        queue_url = queue_info['QueueUrl']
        attributes = {
            'Policy': TEST_POLICY
        }
        self.client.set_queue_attributes(QueueUrl=queue_url, Attributes=attributes)
        attrs = self.client.get_queue_attributes(QueueUrl=queue_url, AttributeNames=['All'])['Attributes']
        self.assertIn('sqs:SendMessage', attrs['Policy'])
        attrs = self.client.get_queue_attributes(QueueUrl=queue_url, AttributeNames=['Policy'])['Attributes']
        self.assertIn('sqs:SendMessage', attrs['Policy'])
        
        self.client.delete_queue(QueueUrl=queue_url)
    def test_send_message_attributes(self):