### Is there an existing issue for this?

- [X] I have searched the existing issues and read the documentation

### Question

Using a websocket apigatewayv2 in localstack and i need to change the body of the request e.g. add the connectionid, which is something i can do with a HTTP integration on the AWS gateway, however when I try this with localstack i receive the following error "Unsupported integration type "HTTP" for Websocket API ID" and then prints the ID of the API, if this feature is not enabled then how should we test the actual API where the connectionId and other things are added to the request body

### Anything else?

_No response_
if is_mac_os():
        return "osx"
    if is_linux():
        return "linux"
    if is_windows():
        return "windows"
    raise Exception("Unable to determine local operating system")
def is_command_available(cmd: str) -> bool:
    try:
        run("which %s" % cmd, print_error=False)
        return True
    except Exception:
        return False
def short_uid() -> str:
    return str(uuid.uuid4())[0:8]
def long_uid() -> str:
    return str(uuid.uuid4())
def parse_json_or_yaml(markup: str) -> JsonComplexType:
    import yaml  
    try:
        return json.loads(markup)
    except Exception:
        try:
            return clone_safe(yaml.safe_load(markup))
        except Exception:
            try:
                return clone_safe(yaml.load(markup, Loader=yaml.SafeLoader))
            except Exception:
                raise
def json_safe(item: JsonType) -> JsonType: