修复loong64无法加全源的问题

.github/workflows/configure-building-enviroment.sh

@@ -17,7 +17,7 @@ export DEBIAN_FRONTEND=noninteractive  # 防止卡 tzdate
 # 写入 GXDE 源
 echo "deb [trusted=true] https://repo1.gxde.top/gxde-os/tianlu ./" >> /etc/apt/sources.list.d/gxde-os.list
 echo "deb [trusted=true] https://repo1.gxde.top/gxde-os/bixie ./" >> /etc/apt/sources.list.d/gxde-os.list
-if [[ $1 == "loong64" ]]; then
+if [[ $(dpkg --print-architecture) == "loong64" ]]; then
     echo "deb [trusted=true] http://mirror.sjtu.edu.cn/debian-ports unreleased main" > /etc/apt/sources.list.d/debian-unreleased.list
 fi
 for i in {1..8};