Add forwarding timeout option (#1462)

Fixes #1454.

tests/common/util/TestWsServer.cpp

@@ -37,14 +37,16 @@
 #include <boost/beast/http/string_body.hpp>
 #include <boost/beast/websocket/error.hpp>
 #include <boost/beast/websocket/rfc6455.hpp>
+#include <boost/beast/websocket/stream.hpp>
 #include <boost/beast/websocket/stream_base.hpp>
 #include <gtest/gtest.h>
 
 #include <algorithm>
 #include <expected>
-#include <iterator>
+#include <functional>
 #include <optional>
 #include <string>
+#include <string_view>
 #include <utility>
 #include <vector>
 
@@ -59,6 +61,11 @@ TestWsConnection::TestWsConnection(
 {
 }
 
+TestWsConnection::TestWsConnection(TestWsConnection&& other)
+    : ws_(std::move(other.ws_)), headers_(std::move(other.headers_))
+{
+}
+
 std::optional<std::string>
 TestWsConnection::send(std::string const& message, boost::asio::yield_context yield)
 {