gnome: rename from gnome3

Since GNOME version is now 40, it no longer makes sense to use the old attribute name.

pkgs/os-specific/linux/piper/default.nix

@@ -1,5 +1,5 @@
 { lib, meson, ninja, pkg-config, gettext, fetchFromGitHub, python3
-, wrapGAppsHook, gtk3, glib, desktop-file-utils, appstream-glib, gnome3
+, wrapGAppsHook, gtk3, glib, desktop-file-utils, appstream-glib, gnome
 , gobject-introspection }:
 
 python3.pkgs.buildPythonApplication rec {
@@ -17,7 +17,7 @@ python3.pkgs.buildPythonApplication rec {
 
   nativeBuildInputs = [ meson ninja gettext pkg-config wrapGAppsHook desktop-file-utils appstream-glib gobject-introspection ];
   buildInputs = [
-    gtk3 glib gnome3.adwaita-icon-theme python3
+    gtk3 glib gnome.adwaita-icon-theme python3
   ];
   propagatedBuildInputs = with python3.pkgs; [ lxml evdev pygobject3 ] ++ [
     gobject-introspection # fixes https://github.com/NixOS/nixpkgs/issues/56943 for now