##### 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
```
if self.mounts is None:
            return None, None
        mounts_list = []
        mounts_expected = []
        for mount in self.mounts:
            target = mount['target']
            datatype = mount['type']
            mount_dict = dict(mount)
            
            if mount_dict.get('source') is None and datatype != 'tmpfs':
                self.client.fail('source must be specified for mount "{0}" of type "{1}"'.format(target, datatype))
            mount_option_types = dict(
                volume_driver='volume',
                volume_options='volume',
                propagation='bind',
                no_copy='volume',
                labels='volume',
                tmpfs_size='tmpfs',
                tmpfs_mode='tmpfs',
            )
            for option, req_datatype in mount_option_types.items():