### 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 none_values is None:
        none_values = [None]
    for key, value in source.items():
        if isinstance(value, dict):
            
            node = destination.setdefault(key, {})
            merge_recursive(value, node, none_values=none_values, overwrite=overwrite)
        else:
            if not isinstance(destination, (dict, CaseInsensitiveDict)):
                LOG.warning(
                    "Destination for merging %s=%s is not dict: %s (%s)",
                    key,
                    value,
                    destination,
                    type(destination),
                )
            if overwrite or destination.get(key) in none_values:
                destination[key] = value
    return destination
def merge_dicts(*dicts, **kwargs):
    """Merge all dicts in `*dicts` into a single dict, and return the result. If any of the entries
    in `*dicts` is None, and `default` is specified as keyword argument, then return `default`."""
    result = {}
    for d in dicts:
        if d is None and "default" in kwargs:
            return kwargs["default"]
        if d:
            result.update(d)
    return result
def recurse_object(obj: JsonType, func: Callable, path: str = "") -> Any: