fix(audio): Fix audio watcher busy looping

alvr/audio/src/linux.rs

@@ -1,6 +1,6 @@
 use alvr_common::{anyhow::Result, debug, error, parking_lot::Mutex};
 use alvr_session::AudioBufferingConfig;
-use alvr_sockets::{StreamReceiver, StreamSender};
+use alvr_sockets::{StreamReceiver, StreamSender, KEEPALIVE_INTERVAL};
 use pipewire::{
     self as pw,
     spa::{
@@ -218,7 +218,9 @@ pub fn record_audio_blocking_pipewire(
     let is_running_clone_for_pw_terminate: Arc<dyn Fn() -> bool + Send + Sync> =
         Arc::clone(&is_running);
     thread::spawn(move || {
-        while is_running_clone_for_pw_terminate() {}
+        while is_running_clone_for_pw_terminate() {
+            thread::sleep(KEEPALIVE_INTERVAL);
+        }
         if pw_sender.send(Terminate).is_err() {
             error!(
                 "Couldn't send pipewire termination signal, deinitializing forcefully.