Merge pull request #265886 from kira-bruneau/at-spi2-core

nixos/gnome/at-spi2-core: fix disabling a11y in all contexts

nixos/modules/services/desktops/gnome/at-spi2-core.nix

···
     })
 
     (mkIf (!config.services.gnome.at-spi2-core.enable) {
-      environment.variables = {
+      environment.sessionVariables = {
         NO_AT_BRIDGE = "1";
         GTK_A11Y = "none";
       };