TorController: Add duration comment to bootstrapTimeout

network/tor/tor/src/main/java/bisq/tor/controller/TorController.java

@@ -21,7 +21,7 @@
 
 @Slf4j
 public class TorController implements BootstrapEventListener {
-    private final int bootstrapTimeout;
+    private final int bootstrapTimeout; // in ms
     private final CountDownLatch isBootstrappedCountdownLatch = new CountDownLatch(1);
     @Getter
     private final Observable<BootstrapEvent> bootstrapEvent = new Observable<>();