create-rpi-oslist: fix logo URL
The destination folder is accessible from the /public/rpi URL, not
/rpi, so make sure the logo is picked from the proper URL.
🟡 v2023.5 entered Soft Feature Freeze, no additional features will be accepted • schedule
The destination folder is accessible from the /public/rpi URL, not
/rpi, so make sure the logo is picked from the proper URL.