treewide: re-enable godot tests

Author: GaetanLepage

tests/test-sources/modules/dependencies.nix

@@ -5,10 +5,6 @@
 }:
 let
   disabledDeps = [
-    # TODO: 2025-04-20: build failure of godot_4
-    # https://github.com/NixOS/nixpkgs/issues/399818
-    # https://github.com/NixOS/nixpkgs/pull/400347
-    "godot"
   ];
 
   inherit (pkgs.stdenv) hostPlatform;

tests/test-sources/plugins/by-name/godot/default.nix

@@ -4,13 +4,8 @@
   ...
 }:
 let
-  enable =
-    # TODO: 2025-04-20: build failure of godot_4
-    # https://github.com/NixOS/nixpkgs/issues/399818
-    # https://github.com/NixOS/nixpkgs/pull/400347
-    false
-    # Godot is only available on Linux
-    && lib.meta.availableOn pkgs.stdenv.hostPlatform pkgs.godot_4;
+  # Godot is only available on Linux
+  enable = lib.meta.availableOn pkgs.stdenv.hostPlatform pkgs.godot_4;
 in
 lib.optionalAttrs enable {
   empty = {