GLTFSkin does not report the class_name of the godot_skin property.

[theraot]

Godot version

v4.0.2.stable.official [7a0977c]

System information

Windows 10

Issue description

The entry for godot_skin in get_property_list should be:

{ "name": "godot_skin", "class_name": &"Skin", "type": 24, "hint": 0, "hint_string": "", "usage": 6 }

But is

{ "name": "godot_skin", "class_name": &"", "type": 24, "hint": 0, "hint_string": "", "usage": 6 }

Steps to reproduce

Execute this code:

	var skin := GLTFSkin.new()
	for property in skin.get_property_list():
		if property["name"] == "godot_skin":
			prints(property)

Minimal reproduction project

GLTFSkinProperty.zip
(A simple project that executes the code shared above).