### 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_
except Exception as e:
            
            LOG.info(
                "Error storing key/cert SSL files (falling back to random tmp file names): %s", e
            )
            target_file_tmp = new_tmp_file()
            cert_file_name, key_file_name = store_cert_key_files(target_file_tmp)
        if all_exist(cert_file_name, key_file_name):
            return target_file, cert_file_name, key_file_name
    if random and target_file:
        if "." in target_file:
            target_file = target_file.replace(".", ".%s." % short_uid(), 1)
        else:
            target_file = "%s.%s" % (target_file, short_uid())
    
    k = crypto.PKey()
    k.generate_key(crypto.TYPE_RSA, 2048)
    
    cert = crypto.X509()
    subj = cert.get_subject()
    subj.C = "AU"
    subj.ST = "Some-State"
    subj.L = "Some-Locality"
    subj.O = "LocalStack Org"  
    subj.OU = "Testing"
    subj.CN = "localhost"
    
    
    serial_number = serial_number or 1001
    cert.set_version(2)