### 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_
return result
    elif integration_type == "MOCK":
        
        return requests_response({})
    if method == "OPTIONS":
        
        return get_cors_response(headers)
    raise Exception(
        'API Gateway integration type "%s", method "%s", URI "%s" not yet implemented'
        % (integration_type, method, uri)
    )
def get_target_resource_details(invocation_context: ApiInvocationContext) -> Tuple[str, Dict]:
    """Look up and return the API GW resource (path pattern + resource dict) for the given invocation context."""
    path_map = helpers.get_rest_api_paths(rest_api_id=invocation_context.api_id)
    relative_path = invocation_context.invocation_path
    try:
        extracted_path, resource = get_resource_for_path(path=relative_path, path_map=path_map)
        return extracted_path, resource
    except Exception:
        return None, None
def get_target_resource_method(invocation_context: ApiInvocationContext) -> Optional[Dict]:
    """Look up and return the API GW resource method for the given invocation context."""
    _, resource = get_target_resource_details(invocation_context)
    if not resource:
        return None
    methods = resource.get("resourceMethods") or {}
    method_name = invocation_context.method.upper()
    method_details = methods.get(method_name) or methods.get("ANY")
    return method_details
def get_stage_variables(api_id: str, stage: str) -> Dict[str, str]: