### Godot version

v4.0.3.rc2.official [2ac4e3bb3]

### System information

Windows 10

### Issue description

It seems that joypad button numbers are changed in Godot 4. The Godot 3->4 conversion doesn't change the button numbers.

This Godot 3 Input Map:

![kuva](https://github.com/godotengine/godot/assets/49998025/86a7db2a-b5b5-48a3-84f9-999de1ed584a)

is converted to this:

![kuva](https://github.com/godotengine/godot/assets/49998025/30ef5803-0559-4408-b0ac-e878bf167ff7)

It seems that only buttons 0-3 are same in Godot 3 and 4:

![kuva](https://github.com/godotengine/godot/assets/49998025/37818929-9582-4a11-bdbe-617fd51dd501)


### Steps to reproduce

Convert any Godot 3 project having joypad buttons assigned to inputs.

### Minimal reproduction project

[conv_test.zip](https://github.com/godotengine/godot/files/11525027/conv_test.zip)

int current_element = 0;
		while (RenamesMap3To4::gdscript_function_renames[current_element][0] != nullptr) {
			String name_3_x = RenamesMap3To4::gdscript_function_renames[current_element][0];
			String name_4_0 = RenamesMap3To4::gdscript_function_renames[current_element][1];
			if (!all_functions.has(name_4_0)) {
				ERR_PRINT(vformat("Missing GDScript function in pair (%s - ===> %s <===)", name_3_x, name_4_0));
				valid = false;
			}
			current_element++;
		}
	}
	if (!valid) {
		ERR_PRINT("Found function which is used in the converter, but it cannot be found in Godot 4. Rename this element or remove its entry if it's obsolete.");
	}
	valid = valid && test_single_array(RenamesMap3To4::enum_renames);
	valid = valid && test_single_array(RenamesMap3To4::class_renames, true);
	valid = valid && test_single_array(RenamesMap3To4::gdscript_function_renames, true);
	valid = valid && test_single_array(RenamesMap3To4::csharp_function_renames, true);
	valid = valid && test_single_array(RenamesMap3To4::gdscript_properties_renames, true);
	valid = valid && test_single_array(RenamesMap3To4::csharp_properties_renames, true);
	valid = valid && test_single_array(RenamesMap3To4::shaders_renames, true);
	valid = valid && test_single_array(RenamesMap3To4::gdscript_signals_renames);
	valid = valid && test_single_array(RenamesMap3To4::project_settings_renames);
	valid = valid && test_single_array(RenamesMap3To4::project_godot_renames);
	valid = valid && test_single_array(RenamesMap3To4::input_map_renames);
	valid = valid && test_single_array(RenamesMap3To4::builtin_types_renames);
	valid = valid && test_single_array(RenamesMap3To4::color_renames);
	return valid;
}
bool ProjectConverter3To4::test_single_array(const char *p_array[][2], bool p_ignore_4_0_name) {