Use dedicated RDP plugin registration for lifted WSL (#623)

Co-authored-by: Hideyuki Nagase <hideyukn@ntdev.microsoft.com>

WSLGd/main.cpp

@@ -344,7 +344,7 @@ try {
         std::move(serviceId),
         "/silent",
         "/wslg",
-        "/plugin:WSLDVC",
+        isWslInstallPathEnvPresent ? "/plugin:WSLDVC_PACKAGE" : "/plugin:WSLDVC",
         std::move(sharedMemoryObPath),
         std::move(rdpFilePath)
     });