replaces use of deprecated std::thread::sleep_ms()

Author: dcuddeback

examples/probe_pins.rs

@@ -34,7 +34,7 @@ fn probe_pins<T: SerialPort>(port: &mut T) -> serial::Result<()> {
  let mut toggle = true;
 
  loop {
- thread::sleep_ms(1000);
+ thread::sleep(Duration::from_secs(1));
 
  if toggle {
  rts = !rts;