##### 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
```
type:
        description:
          - The mount type.
          - Note that C(npipe) is only supported by Docker for Windows.
        type: str
        choices:
          - 'bind'
          - 'volume'
          - 'tmpfs'
          - 'npipe'
        default: volume
      read_only:
        description:
          - 'Whether the mount should be read-only.'
        type: bool
      consistency:
        description:
          - 'The consistency requirement for the mount.'
        type: str
        choices:
          - 'default'
          - 'consistent'
          - 'cached'
          - 'delegated'
      propagation:
        description:
          - Propagation mode. Only valid for the C(bind) type.
        type: str
        choices:
          - 'private'