### 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)

used_functions[p_identifier].used = true;
			}
			break;
		case IdentifierType::IDENTIFIER_LOCAL_VAR:
			if (HAS_WARNING(ShaderWarning::UNUSED_LOCAL_VARIABLE_FLAG) && used_local_vars.has(p_function) && used_local_vars[p_function].has(p_identifier)) {
				used_local_vars[p_function][p_identifier].used = true;
			}
			break;
		default:
			break;
	}
}
#endif 
bool ShaderLanguage::_find_identifier(const BlockNode *p_block, bool p_allow_reassign, const FunctionInfo &p_function_info, const StringName &p_identifier, DataType *r_data_type, IdentifierType *r_type, bool *r_is_const, int *r_array_size, StringName *r_struct_name, ConstantNode::Value *r_constant_value) {
	if (is_shader_inc) {
		for (int i = 0; i < RenderingServer::SHADER_MAX; i++) {
			for (const KeyValue<StringName, FunctionInfo> &E : ShaderTypes::get_singleton()->get_functions(RenderingServer::ShaderMode(i))) {
				if ((current_function == E.key || E.key == "global" || E.key == "constants") && E.value.built_ins.has(p_identifier)) {
					if (r_data_type) {
						*r_data_type = E.value.built_ins[p_identifier].type;
					}
					if (r_is_const) {
						*r_is_const = E.value.built_ins[p_identifier].constant;
					}
					if (r_type) {
						*r_type = IDENTIFIER_BUILTIN_VAR;
					}
					return true;
				}
			}