Enable mono editor build in CI

[qarmin]

Depends on #47414 which removes partial editor mono compilation instructions

It would allow to get from CI fully working Godot mono build exactly as in 3.2 branch

[qarmin]

I tested artifacts and seems that editor works fine and can build project

[akien-mga]

I actually broke the Mono build yesterday, #53882 should fix it (at least the current error).

Another proof that we need this finalized and merged :P

[qarmin]

I copied compilation instructions from 3.x branch and looks that now after producing binary, editor freeze when executing unit tests

[qarmin]

Looks that mono build is again broken

 modules/mono/mono_gd/gd_mono_utils.cpp:453:111: error: no matching function for call to 'ScriptDebugger::send_error(String&, String&, int&, String&, String&, ErrorHandlerType, Vector<ScriptLanguage::StackInfo>&)'
  453 |  EngineDebugger::get_script_debugger()->send_error(func, file, line, error_msg, exc_msg, ERR_HANDLER_ERROR, si);
      |                                                                                                               ^
In file included from modules/mono/mono_gd/gd_mono_utils.cpp:37:
./core/debugger/script_debugger.h:74:7: note: candidate: 'void ScriptDebugger::send_error(const String&, const String&, int, const String&, const String&, bool, ErrorHandlerType, const Vector<ScriptLanguage::StackInfo>&)'
   74 |  void send_error(const String &p_func, const String &p_file, int p_line, const String &p_err, const String &p_descr, bool p_editor_notify, ErrorHandlerType p_type, const Vector<StackInfo> &p_stack_info);
      |       ^~~~~~~~~~
./core/debugger/script_debugger.h:74:7: note:   candidate expects 8 arguments, 7 provided

[akien-mga]

Fixed by #54016.

[qarmin]

Looks that there is another problem, because entire job freeze for 6 hours and fails - https://github.com/godotengine/godot/runs/3914980436?check_suite_focus=true

 WARNING: Changing the VSync mode is not supported by this display server.
     at: window_get_vsync_mode (servers/display_server.cpp:320)
ERROR: Sub-windows not supported by this display server.
   at: create_sub_window (servers/display_server.cpp:188)
ERROR: Condition "window_id == DisplayServer::INVALID_WINDOW_ID" is true.
   at: _make_window (scene/main/window.cpp:229)

I tried to add --headless to tests but still I see that this job freeze

[akien-mga]

You should update main.cpp too:

                // From editor/csharp_project.cpp.
                GLOBAL_DEF("mono/project/auto_update_project", true);

[qarmin]

What should be done here?
I removed this line because i checked that auto_update_project is not used in other files

[akien-mga]

You should remove the dummy define from main.cpp, it's no longer used.

[akien-mga]

Thanks!