### 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)

return false;
}
RS::ShaderNativeSourceCode SkyShaderData::get_native_source_code() const {
	return MaterialStorage::get_singleton()->shaders.sky_shader.version_get_native_source_code(version);
}
SkyShaderData::SkyShaderData() {
	valid = false;
}
SkyShaderData::~SkyShaderData() {
	if (version.is_valid()) {
		MaterialStorage::get_singleton()->shaders.sky_shader.version_free(version);
	}
}
GLES3::ShaderData *GLES3::_create_sky_shader_func() {
	SkyShaderData *shader_data = memnew(SkyShaderData);
	return shader_data;
}
void SkyMaterialData::update_parameters(const HashMap<StringName, Variant> &p_parameters, bool p_uniform_dirty, bool p_textures_dirty) {
	uniform_set_updated = true;
	update_parameters_internal(p_parameters, p_uniform_dirty, p_textures_dirty, shader_data->uniforms, shader_data->ubo_offsets.ptr(), shader_data->texture_uniforms, shader_data->default_texture_params, shader_data->ubo_size);
}
SkyMaterialData::~SkyMaterialData() {
}
GLES3::MaterialData *GLES3::_create_sky_material_func(ShaderData *p_shader) {
	SkyMaterialData *material_data = memnew(SkyMaterialData);
	material_data->shader_data = static_cast<SkyShaderData *>(p_shader);
	
	return material_data;
}
void SkyMaterialData::bind_uniforms() {