Task: Fix dnsmasq Sandboxing Configuration for CentOS 9 / Modern systemd

Task: Fix dnsmasq Sandboxing Configuration for CentOS 9 / Modern systemd: a task in Terminal-Lego-15k (Harbor dataset). When running dnsmasq with systemd sandboxing on newer Linux distributions (e.g., CentOS 9 / systems with newer systemd versions), the service fails to start with errors such as: