modules/sway: update default package (under mdevd) to reflect changes in nixpkgs

Author: aanderse

modules/programs/sway/default.nix

@@ -24,15 +24,15 @@ let
     }
   );
 
-  wlroots_0_19 = pkgs.wlroots_0_19.override {
+  wlroots_0_20 = pkgs.wlroots_0_20.override {
     inherit libinput;
 
     # xwayland appears to cause issues with mdevd - and not required in this context, so no harm in removing
     enableXWayland = !config.services.mdevd.enable;
   };
 
   sway-unwrapped = pkgs.sway-unwrapped.override {
-    inherit libinput wlroots_0_19;
+    inherit libinput wlroots_0_20;
 
     # since we're recompiling go ahead and disable systemd
     systemdSupport = !config.services.mdevd.enable;