Dbus_Rest: Fix bmcweb crash

GET on URI "/bus/system/" causes bmcweb service to crash.
This occurred as asyncResp was captured by reference by lambda.

Tested:
 - GET on /bus/system/ responded with desired output without crash.

Signed-off-by: P Dheeraj Srujan Kumar <p.dheeraj.srujan.kumar@intel.com>
Change-Id: I2c777be4bc2c95332d47df380c867891b133d016
diff --git a/include/openbmc_dbus_rest.hpp b/include/openbmc_dbus_rest.hpp
index 298298b..3188188 100644
--- a/include/openbmc_dbus_rest.hpp
+++ b/include/openbmc_dbus_rest.hpp
@@ -2081,7 +2081,7 @@
         .methods(boost::beast::http::verb::get)(
             [](const crow::Request&,
                const std::shared_ptr<bmcweb::AsyncResp>& asyncResp) {
-                auto myCallback = [&asyncResp](
+                auto myCallback = [asyncResp](
                                       const boost::system::error_code ec,
                                       std::vector<std::string>& names) {
                     if (ec)