##### 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
```
'''
        Turn sysctls into an hash of Sysctl objects
        '''
        return self.sysctls
    def _parse_log_config(self):
        '''
        Create a LogConfig object
        '''
        if self.log_driver is None:
            return None
        options = dict(
            Type=self.log_driver,
            Config=dict()
        )
        if self.log_options is not None:
            options['Config'] = dict()
            for k, v in self.log_options.items():
                if not isinstance(v, string_types):
                    self.client.module.warn(
                        "Non-string value found for log_options option '%s'. The value is automatically converted to '%s'. "
                        "If this is not correct, or you want to avoid such warnings, please quote the value." % (k, str(v))
                    )
                v = str(v)
                self.log_options[k] = v
                options['Config'][k] = v
        try:
            return LogConfig(**options)
        except ValueError as exc:
            self.fail('Error parsing logging options - %s' % (exc))
    def _parse_tmpfs(self):