flatpak: Unbreak build
Meson 0.57.2 caused issues while building systemd without having rsync installed. This patch from systemd upstream fixes the issue.
https://github.com/systemd/systemd/commit/7c5fd25119a495009ea62f79e5daec34cc464628
Meson 0.57.2 caused issues while building systemd without having rsync installed. This patch from systemd upstream fixes the issue.
https://github.com/systemd/systemd/commit/7c5fd25119a495009ea62f79e5daec34cc464628