### Godot version

v4.1.dev.custom_build.a7276f1ce

### System information

Win10, AMD 2600, GeForce GTX 1060, Vulkan API 1.3.205

### Issue description

I can't get correct color data from an array of source_color type.
The color data is saved as **Color** in the file:
`shader_parameter/palette = [Color (1, 0, 0, 1), Color (0, 1, 0, 1), Color (0, 0, 1, 1)]`
Shouldn't it be saved as PackedColorArray?


### Steps to reproduce

1.Declare an array of source_color type.
2.Set colors.

### Minimal reproduction project

[shadertest.zip](https://github.com/godotengine/godot/files/11246504/shadertest.zip)

if (o->in_use && o->override.get_type() != Variant::NIL) {
			pinfo.usage |= PROPERTY_USAGE_CHECKED;
			pinfo.usage |= PROPERTY_USAGE_STORAGE;
		}
		p_list->push_back(pinfo);
	}
}
void ShaderGlobalsOverride::_activate() {
	ERR_FAIL_NULL(get_tree());
	List<Node *> nodes;
	get_tree()->get_nodes_in_group(SceneStringNames::get_singleton()->shader_overrides_group_active, &nodes);
	if (nodes.size() == 0) {
		
		active = true;
		add_to_group(SceneStringNames::get_singleton()->shader_overrides_group_active);
		for (const KeyValue<StringName, Override> &E : overrides) {
			const Override *o = &E.value;
			if (o->in_use && o->override.get_type() != Variant::NIL) {
				if (o->override.get_type() == Variant::OBJECT) {
					RID tex_rid = o->override;
					RS::get_singleton()->global_shader_parameter_set_override(E.key, tex_rid);
				} else {
					RS::get_singleton()->global_shader_parameter_set_override(E.key, o->override);
				}
			}
			update_configuration_warnings(); 
		}
	}
}
void ShaderGlobalsOverride::_notification(int p_what) {