### Is there an existing issue for this?

- [X] I have searched the existing issues

### Feature description

Currently, the default port range for external services is configured in `config.py` as follows:
https://github.com/localstack/localstack/blob/075a6fcfcc29af99e1997d73abea6e88351f3c84/localstack/config.py#L462-L472
This means that the default service range is: (4510,4540]
But the example `docker-compose.yml` states (4510, 4530):
https://github.com/localstack/localstack/blob/075a6fcfcc29af99e1997d73abea6e88351f3c84/docker-compose.yml#L12

The currently stated 20 ports can already be somewhat limiting if a lot of external services are started (f.e. lots of clusters or databases). Therefore the range should be broadened and correctly defined in our example `docker-compose.yml` file.

### 🧑‍💻 Implementation

- [x] Broaden the service port range to 50 ports.
- [x] Update the example docker-compose file.

### Anything else?

_No response_
"TEST_IAM_USER_ID",
    "TEST_IAM_USER_NAME",
    "TF_COMPAT_MODE",
    "THUNDRA_APIKEY",
    "THUNDRA_AGENT_JAVA_VERSION",
    "THUNDRA_AGENT_NODE_VERSION",
    "THUNDRA_AGENT_PYTHON_VERSION",
    "USE_SINGLE_REGION",
    "USE_SSL",
    "WAIT_FOR_DEBUGGER",
    "WINDOWS_DOCKER_MOUNT_PREFIX",
]
def collect_config_items() -> List[Tuple[str, Any]]:
    """Returns a list of key-value tuples of LocalStack configuration values."""
    none = object()  
    
    keys = []
    keys.extend(CONFIG_ENV_VARS)
    keys.append("DATA_DIR")
    keys.sort()
    values = globals()
    result = []
    for k in keys:
        v = values.get(k, none)
        if v is none:
            continue
        result.append((k, v))
    result.sort()
    return result
def parse_service_ports() -> Dict[str, int]: