##### 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 sorted((a, str(b)) for a, b in x.items())
                        if p is not None:
                            p = sorted(p, key=sort_key_fn)
                        if c is not None:
                            c = sorted(c, key=sort_key_fn)
                    differences.add(key, parameter=p, active=c)
        has_differences = not differences.empty
        return has_differences, differences
    def has_different_resource_limits(self):
        '''
        Diff parameters and container resource limits
        '''
        if not self.container.get('HostConfig'):
            self.fail("limits_differ_from_container: Error parsing container properties. HostConfig missing.")
        if self.parameters.client.docker_api_version < LooseVersion('1.22'):
            
            return False, []
        host_config = self.container['HostConfig']
        config_mapping = dict(
            blkio_weight=host_config.get('BlkioWeight'),
            cpu_period=host_config.get('CpuPeriod'),
            cpu_quota=host_config.get('CpuQuota'),
            cpu_shares=host_config.get('CpuShares'),
            cpuset_cpus=host_config.get('CpusetCpus'),
            cpuset_mems=host_config.get('CpusetMems'),
            kernel_memory=host_config.get("KernelMemory"),
            memory=host_config.get('Memory'),