Use a tokio interval instead of a sleep in the activity tracker

crates/handlers/src/activity_tracker/mod.rs

@@ -185,6 +185,8 @@ impl ActivityTracker {
         // This guard on the shutdown token is to ensure that if this task crashes for
         // any reason, the server will shut down
         let _guard = cancellation_token.clone().drop_guard();
+        let mut interval = tokio::time::interval(interval);
+        interval.set_missed_tick_behavior(tokio::time::MissedTickBehavior::Skip);
 
         loop {
             tokio::select! {
@@ -202,7 +204,7 @@ impl ActivityTracker {
                 }
 
 
-                () = tokio::time::sleep(interval) => {
+                _ = interval.tick() => {
                     self.flush().await;
                 }
             }