nixosTests.tuxguitar: migrate to runTest (#396010)

nixos/tests/all-tests.nix

···
   tuptime = handleTest ./tuptime.nix { };
   turbovnc-headless-server = handleTest ./turbovnc-headless-server.nix { };
   turn-rs = handleTest ./turn-rs.nix { };
-  tuxguitar = handleTest ./tuxguitar.nix { };
+  tuxguitar = runTest ./tuxguitar.nix;
   twingate = runTest ./twingate.nix;
   typesense = handleTest ./typesense.nix { };
   ucarp = handleTest ./ucarp.nix { };

nixos/tests/tuxguitar.nix

···
-import ./make-test-python.nix (
-  { pkgs, ... }:
-  {
-    name = "tuxguitar";
-    meta = with pkgs.lib.maintainers; {
-      maintainers = [ ];
-    };
+{ ... }:
+{
+  name = "tuxguitar";
+  meta.maintainers = [ ];
 
-    nodes.machine =
-      { config, pkgs, ... }:
-      {
-        imports = [
-          ./common/x11.nix
-        ];
+  nodes.machine =
+    { config, pkgs, ... }:
+    {
+      imports = [
+        ./common/x11.nix
+      ];
 
-        services.xserver.enable = true;
+      services.xserver.enable = true;
 
-        environment.systemPackages = [ pkgs.tuxguitar ];
-      };
+      environment.systemPackages = [ pkgs.tuxguitar ];
+    };
 
-    testScript = ''
-      machine.wait_for_x()
-      machine.succeed("tuxguitar >&2 &")
-      machine.wait_for_window("TuxGuitar - Untitled.tg")
-      machine.sleep(1)
-      machine.screenshot("tuxguitar")
-    '';
-  }
-)
+  testScript = ''
+    machine.wait_for_x()
+    machine.succeed("tuxguitar >&2 &")
+    machine.wait_for_window("TuxGuitar - Untitled.tg")
+    machine.sleep(1)
+    machine.screenshot("tuxguitar")
+  '';
+}