##### SUMMARY
Hi,

When you want to pass an empty list or a null/None value to published_ports on docker_container it's actually impossible, so you get this error

```
File \"/tmp/ansible_docker_container_payload_ZOZc5l/__main__.py\", line 1448, in _parse_publish_ports\r\n  File \"/tmp/ansible_docker_container_payload_ZOZc5l/__main__.py\", line 1003, in parse_port_range\r\nValueError: invalid literal for int() with base 10: ''\r\n",
 ```

Ref #61602

The problem is that we parse via `_parse_publish_ports` the parameter if self.published_ports is not None or not 'all'
Also after that there is no control on each elements of the list, (not like for the volumes parameter by example)

So I propose to patch line 1151
`self.published_ports = self._parse_publish_ports() `
to
`self.published_ports = self._parse_publish_ports() if self.published_ports else None`

Best regards

##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME
* docker_container

##### ANSIBLE VERSION

```
ansible 2.8.4
```
container = self._get_container(self.parameters.name)
        was_running = container.running
        was_paused = container.paused
        container_created = False
        
        
        
        
        
        image = self._get_image()
        self.log(image, pretty_print=True)
        if not container.exists:
            
            self.log('No container found')
            if not self.parameters.image:
                self.fail('Cannot create container when image is not specified!')
            self.diff_tracker.add('exists', parameter=True, active=False)
            new_container = self.container_create(self.parameters.image, self.parameters.create_parameters)
            if new_container:
                container = new_container
            container_created = True
        else:
            
            different, differences = container.has_different_configuration(image)
            image_different = False
            if self.parameters.comparisons['image']['comparison'] == 'strict':
                image_different = self._image_is_different(image, container)