### 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_
"""Returns Localstack directory paths based on the localstack filesystem hierarchy."""
        return Directories(
            static_libs="/usr/lib/localstack",
            var_libs=f"{DEFAULT_VOLUME_DIR}/lib",
            cache=f"{DEFAULT_VOLUME_DIR}/cache",
            tmp=f"{DEFAULT_VOLUME_DIR}/tmp",
            functions=f"{DEFAULT_VOLUME_DIR}/tmp",  
            data=f"{DEFAULT_VOLUME_DIR}/state",
            logs=f"{DEFAULT_VOLUME_DIR}/logs",
            config="/etc/localstack/conf.d",  
            init="/etc/localstack/init",
        )
    @staticmethod
    def for_container() -> "Directories":