misc: clippy: add semicolon_if_nothing_returned

Signed-off-by: Philipp Schuster <philipp.schuster@cyberus-technology.de>
On-behalf-of: SAP philipp.schuster@sap.com

rate_limiter/src/lib.rs

@@ -300,7 +300,7 @@ impl RateLimiterInner {
         self.timer_fd
             .reset(dur, None)
             .expect("Can't arm the timer (unexpected 'timerfd_settime' failure).");
-        flag.store(true, Ordering::Relaxed)
+        flag.store(true, Ordering::Relaxed);
     }
 }