### Godot version

4.2.stable

### System information

Godot v4.2.stable - Windows 10.0.22621 - GLES3 (Compatibility) - Intel(R) Iris(R) Plus Graphics (Intel Corporation; 27.20.100.9621) - Intel(R) Core(TM) i7-1065G7 CPU @ 1.30GHz (8 Threads)

### Issue description

This warning gets spammed when scrolling any slider on the color picker of the editor using the mouse wheel.
The value of the slider gets affected nevertheless
```
scene/gui/control.cpp:2012 - This control can't grab focus. Use set_focus_mode() to allow a control to get focus.
```

### Steps to reproduce

For example having a script that exports a color
and scrolling the A slider in the Inspector
```
@export var color : Color
```
![image](https://github.com/godotengine/godot/assets/43796250/0447e952-a8b2-48ae-ac89-3ef248699b22)


### Minimal reproduction project

N/A
#include "slider.h"
#include "core/os/keyboard.h"
#include "scene/theme/theme_db.h"
Size2 Slider::get_minimum_size() const {
	Size2i ss = theme_cache.slider_style->get_minimum_size();
	Size2i rs = theme_cache.grabber_icon->get_size();
	if (orientation == HORIZONTAL) {
		return Size2i(ss.width, MAX(ss.height, rs.height));
	} else {
		return Size2i(MAX(ss.width, rs.width), ss.height);
	}
}
void Slider::gui_input(const Ref<InputEvent> &p_event) {
	ERR_FAIL_COND(p_event.is_null());
	if (!editable) {
		return;
	}