##### 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
```
'''
        Return a list of container mounts.
        :return:
        '''
        result = []
        if self.volumes:
            for vol in self.volumes:
                if ':' in vol:
                    if len(vol.split(':')) == 3:
                        dummy, container, dummy = vol.split(':')
                        result.append(container)
                        continue
                    if len(vol.split(':')) == 2:
                        parts = vol.split(':')
                        if not is_volume_permissions(parts[1]):
                            result.append(parts[1])
                            continue
                result.append(vol)
        self.log("mounts:")
        self.log(result, pretty_print=True)
        return result
    def _host_config(self):