Update build24.sh

Author: wkccd

x86-64/build24.sh

@@ -1,5 +1,7 @@
 #!/bin/bash
 # Log file for debugging
+# 临时换源
+sed -i 's#https://downloads.immortalwrt.org#https://mirrors.pku.edu.cn/immortalwrt#g' repositories.conf
 source shell/custom-packages.sh
 echo "第三方软件包: $CUSTOM_PACKAGES"
 LOGFILE="/tmp/uci-defaults-log.txt"