http_client: add missed useragent parameter

While preparing query_params, "useragent" was missed - add it.

(cherry picked from commit 65a777f)
(cherry picked from commit 5c44038)

src/modules/http_client/functions.c

@@ -546,6 +546,7 @@ int curl_con_query_url_f(struct sip_msg* _m, const str *connection,
 	query_params.cacert = default_tls_cacert;
 	query_params.ciphersuites = conn->ciphersuites;
 	query_params.tlsversion = conn->tlsversion;
+	query_params.useragent = conn->useragent;
 	query_params.verify_peer = conn->verify_peer;
 	query_params.verify_host = conn->verify_host;
 	query_params.timeout = conn->timeout;