power management: restart post-resume.target on resume

Trigger a restart of the post-resume.target on resume.
That allows other systemd services to receive the restart signal
after resume by becoming 'partOf' the post-resume.target.

Changed files
+1
nixos
modules
+1
nixos/modules/config/power-management.nix
···
after = [ "suspend.target" "hibernate.target" "hybrid-sleep.target" ];
script =
''
+
${config.systemd.package}/bin/systemctl try-restart post-resume.target
${cfg.resumeCommands}
${cfg.powerUpCommands}
'';