fix: don't specify worker count for config watcher

We will need to test how this scales with added clients

soar_bus.py

@@ -49,7 +49,7 @@ class ConfigHandler(FileSystemEventHandler):
 
 def update_clients(updated_client_ids):
     global RUNNING_CLIENTS
-    with concurrent.futures.ThreadPoolExecutor(max_workers=5) as executor:
+    with concurrent.futures.ThreadPoolExecutor() as executor:
         logging.debug("Old: " + str(RUNNING_CLIENTS))
         logging.debug("New: " + str(updated_client_ids))