### 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_
import base64
import binascii
import decimal
import functools
import glob
import hashlib
import inspect
import io
import itertools
import json
import logging
import os
import platform
import re
import shutil
import socket
import subprocess
import sys
import tarfile
import tempfile
import threading