cage: drop maintainership (#121174)

I cannot currently maintain this, as I don't have access to the hardware
running it anymore.

nixos/modules/services/wayland/cage.nix

@@ -93,6 +93,6 @@ in {
     systemd.defaultUnit = "graphical.target";
   };
 
-  meta.maintainers = with lib.maintainers; [ matthewbauer flokli ];
+  meta.maintainers = with lib.maintainers; [ matthewbauer ];
 
 }

nixos/tests/cage.nix

@@ -3,7 +3,7 @@ import ./make-test-python.nix ({ pkgs, ...} :
 {
   name = "cage";
   meta = with pkgs.lib.maintainers; {
-    maintainers = [ matthewbauer flokli ];
+    maintainers = [ matthewbauer ];
   };
 
   machine = { ... }: