used make_unique instead of unique_ptr

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

Author: kr-2003

src/main.cpp

@@ -59,7 +59,7 @@ int main(int argc, char* argv[])
     signal(SIGINT, xcpp::stop_handler);
 
     std::string file_name = xeus::extract_filename(argc, argv);
-    auto interpreter = std::unique_ptr<xcpp::interpreter>(new xcpp::interpreter(argc, argv));
+    auto interpreter = std::make_unique<xcpp::interpreter>(argc, argv);
     std::unique_ptr<xeus::xcontext> context = xeus::make_zmq_context();
 
     if (!file_name.empty())