### 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_
proxy_map = {}
    if config.OUTBOUND_HTTP_PROXY:
        proxy_map["http"] = config.OUTBOUND_HTTP_PROXY
    if config.OUTBOUND_HTTPS_PROXY:
        proxy_map["https"] = config.OUTBOUND_HTTPS_PROXY
    return proxy_map
def download(url: str, path: str, verify_ssl: bool = True, timeout: float = None):
    """Downloads file at url to the given path. Raises TimeoutError if the optional timeout (in secs) is reached."""
    
    s = requests.Session()
    proxies = get_proxies()
    if proxies:
        s.proxies.update(proxies)
    
    
    _verify = os.getenv("REQUESTS_CA_BUNDLE", verify_ssl)
    r = None
    try:
        r = s.get(url, stream=True, verify=_verify, timeout=timeout)
        
        if not r.ok:
            raise Exception("Failed to download %s, response code %s" % (url, r.status_code))
        total = 0
        if not os.path.exists(os.path.dirname(path)):
            os.makedirs(os.path.dirname(path))
        LOG.debug(
            "Starting download from %s to %s (%s bytes)", url, path, r.headers.get("Content-Length")