### 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_
)
        with open(path, "wb") as f:
            iter_length = 0
            iter_limit = 1000000  
            for chunk in r.iter_content(DOWNLOAD_CHUNK_SIZE):
                total += len(chunk)
                iter_length += len(chunk)
                if chunk:  
                    f.write(chunk)
                else:
                    LOG.debug("Empty chunk %s (total %s) from %s", chunk, total, url)
                if iter_length >= iter_limit:
                    LOG.debug("Written %s bytes (total %s) to %s", iter_length, total, path)
                    iter_length = 0
            f.flush()
            os.fsync(f)
        if os.path.getsize(path) == 0:
            LOG.warning("Zero bytes downloaded from %s, retrying", url)
            download(url, path, verify_ssl)
            return
        LOG.debug(
            "Done downloading %s, response code %s, total bytes %d", url, r.status_code, total
        )
    except requests.exceptions.ReadTimeout as e:
        raise TimeoutError(f"Timeout ({timeout}) reached on download: {url} - {e}")
    finally:
        if r is not None:
            r.close()
        s.close()
def parse_request_data(method: str, path: str, data=None, headers=None) -> Dict: