core: 修复在 windows 下打包 initramfs 时, 修改了 rdisc6 的 owner 导致 rdisc6 无法运行

造成 ipv6 统一配置成静态

> rdisc6 ens5
Raw IPv6 socket: Operation not permitted

> ls -l /usr/bin/rdisc6
-rwsr-xr-x 1 197108 197121 26648 Jan 14 2024 /usr/bin/rdisc6

reinstall.sh

@@ -3918,7 +3918,7 @@ This script is outdated, please download reinstall.sh again.
     # -c    Identical to "-H newc", use the new (SVR4)
     #       portable format.If you wish the old portable
     #       (ASCII) archive format, use "-H odc" instead.
-    find . | cpio --quiet -o -H newc | gzip -1 >/reinstall-initrd
+    find . | cpio --quiet -o -H newc -R 0:0 | gzip -1 >/reinstall-initrd
     cd - >/dev/null
 }