##### SUMMARY
If there's currently a container with image `repo/name:tag1` running (or created), and I change the `docker_container` image tag to `repo/name:tag2` (where this image hasn't been pulled yet), `docker_container` will not notice that the image changed and will not recreate the container.

##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME
docker_container

##### ANSIBLE VERSION
```paste below
2.9.0
```

restart_policy=restart_policy.get('Name'),
            runtime=host_config.get('Runtime'),
            shm_size=host_config.get('ShmSize'),
            security_opts=host_config.get("SecurityOpt"),
            stop_signal=config.get("StopSignal"),
            tmpfs=host_config.get('Tmpfs'),
            tty=config.get('Tty'),
            expected_ulimits=host_config.get('Ulimits'),
            expected_sysctls=host_config.get('Sysctls'),
            uts=host_config.get('UTSMode'),
            expected_volumes=config.get('Volumes'),
            expected_binds=host_config.get('Binds'),
            volume_driver=host_config.get('VolumeDriver'),
            volumes_from=host_config.get('VolumesFrom'),
            working_dir=config.get('WorkingDir'),
            publish_all_ports=host_config.get('PublishAllPorts'),
            expected_healthcheck=config.get('Healthcheck'),
            disable_healthcheck=(not config.get('Healthcheck') or config.get('Healthcheck').get('Test') == ['NONE']),
            device_read_bps=host_config.get('BlkioDeviceReadBps'),
            device_write_bps=host_config.get('BlkioDeviceWriteBps'),
            device_read_iops=host_config.get('BlkioDeviceReadIOps'),
            device_write_iops=host_config.get('BlkioDeviceWriteIOps'),
            pids_limit=host_config.get('PidsLimit'),
            
            
            
            
            expected_mounts=self._decode_mounts(host_config.get('Mounts')),
        )