### Godot version

v3.5.1.stable.official [6fed1ffa3]

### System information

Steam OS, Steam Deck

### Issue description

Calling `tween_callback` where the first (object) parameter is a `Reference` doesn't work as I expected.  The code compiles and runs without producing any errors, but the callback function is never executed.

### Steps to reproduce

Running the minimal reproduction project demonstrates the issue.  The code pattern is quite simple:

**ReferenceType.gd**
```gdscript
extends Reference

func foo():
	print("foo was called")
```

**Test.gd**
```gdscript
extends Node2D

func _ready():
	var ref := preload("ReferenceType.gd").new()
	var tween := create_tween()
	tween.tween_interval(1)
	tween.tween_callback(ref, "foo")
```

I suspect that the issue is somehow related to reference-counting, and that `SceneTreeTween` is not updating the object's reference count.  I can get the behavior I expect by modifying the code to call `reference()` and `unreference()` manually, as shown below:

```gdscript
	var ref := preload("ReferenceType.gd").new()
	ref.reference()
	
	var tween := create_tween()
	tween.tween_interval(1)
	tween.tween_callback(ref, "foo")
	tween.tween_callback(ref, "unreference")
```

The documentation strongly recommends against calling these functions "unless you know what you're doing", so it feels like `SceneTreeTween` should handle this.  If this is expected behavior, it would be nice if the `SceneTreeTween` documentation urged caution when using `Reference`. 

### Minimal reproduction project

[ReferenceTween.zip](https://github.com/godotengine/godot/files/10328012/ReferenceTween.zip)

int loops = 1;
	int loops_done = 0;
	float speed_scale = 1;
	bool is_bound = false;
	bool started = false;
	bool running = true;
	bool dead = false;
	bool valid = false;
	bool default_parallel = false;
	bool parallel_enabled = false;
#ifdef DEBUG_ENABLED
	bool is_infinite = false;
#endif
	typedef real_t (*interpolater)(real_t t, real_t b, real_t c, real_t d);
	static interpolater interpolaters[TRANS_MAX][EASE_MAX];
	void start_tweeners();
protected:
	static void _bind_methods();
public:
	Ref<PropertyTweener> tween_property(Object *p_target, NodePath p_property, Variant p_to, double p_duration);
	Ref<IntervalTweener> tween_interval(double p_time);
	Ref<CallbackTweener> tween_callback(Callable p_callback);
	Ref<MethodTweener> tween_method(Callable p_callback, Variant p_from, Variant p_to, double p_duration);
	void append(Ref<Tweener> p_tweener);
	bool custom_step(double p_delta);
	void stop();
	void pause();
	void play();
	void kill();
	bool is_running();