### Is there an existing issue for this?

- [X] I have searched the existing issues

### Current Behavior

`PORTS_CHECK_DOCKER_IMAGE` is not configurable which prevents ECS tasks from running on air-gapped environment



### Expected Behavior

`PORTS_CHECK_DOCKER_IMAGE` can be configured via configuration option to allow use of any available image 

### How are you starting LocalStack?

With a docker-compose file

### Steps To Reproduce

Run an ECS task in an environment where localstack/localstack is not available.

### Environment

```markdown
- OS: RHEL8
- Docker runtime version: Podman v4.2.0
- LocalStack: 1.3.1
```


### Anything else?

_No response_
name_prefix = "filter_tests_"
        cn1 = name_prefix + _random_container_name()
        cn2 = name_prefix + _random_container_name()
        cn3 = name_prefix + _random_container_name()
        c1 = create_container("alpine", name=cn1, command=["echo", "1"])
        c2 = create_container("alpine", name=cn2, command=["echo", "2"])
        c3 = create_container("alpine", name=cn3, command=["echo", "3"])
        
        container_list = docker_client.list_containers(filter=f"id={c2.container_id}")
        assert 1 == len(container_list)
        assert c2.container_id.startswith(container_list[0]["id"])
        assert c2.container_name == container_list[0]["name"]
        assert "created" == container_list[0]["status"]
        
        container_list = docker_client.list_containers(filter=f"name={name_prefix}")
        assert 3 == len(container_list)
        image_names = [info["name"] for info in container_list]
        assert c1.container_name in image_names
        assert c2.container_name in image_names
        assert c3.container_name in image_names
        
        container_list = docker_client.list_containers(
            filter=[
                f"id={c1.container_id}",
                f"name={container_name_prefix}",
            ]
        )
        assert 1 == len(container_list)
        assert c1.container_name == container_list[0]["name"]
    def test_get_container_entrypoint(self, docker_client: ContainerClient):