Fix boost 1.86.0 build

Due to a change in boost.asio 1.86.0, a template deduction is no longer working. Therefore, we replace auto with the concrete type that we want.

lib/malloy/core/websocket/connection.hpp

@@ -142,7 +142,7 @@ namespace malloy::websocket
                 // Make the connection on the IP address we get from a lookup
                 sock.async_connect(
                     target,
-                    [this, me, target, done = std::forward<Callback>(done), resource](auto ec, auto ep) mutable {
+                    [this, me, target, done = std::forward<Callback>(done), resource](auto ec, boost::asio::ip::tcp::resolver::results_type::endpoint_type ep) mutable {
                         if (ec) {
                             done(ec);
                         }