Update repo

apps/02_uart/src/main.c

@@ -78,10 +78,10 @@ int main(void)
 	while (1) {
 		while (k_msgq_get(&uart_rx_queue, &ch, K_NO_WAIT) == 0) {
 			if (ch == 'O' || ch == 'o') {
-				(void)gpio_pin_set_dt(&led_red, 1);
+				gpio_pin_set_dt(&led_red, 1);
 				printk("LED on\r\n");
 			} else if (ch == 'F' || ch == 'f') {
-				(void)gpio_pin_set_dt(&led_red, 0);
+				gpio_pin_set_dt(&led_red, 0);
 				printk("LED off\r\n");
 			}
 		}