Increase sleep time in bybit_md_provider keep-alive loop

This thread's only job is to stay alive until "stop" is called. It
doesn't need to be particularly fast/responsive. Longer sleep intervals
reduce contention with the "hot" thread that receives market data.

src/lib_python_interop/python_interop_plugins/bybit_md_provider.py

@@ -189,7 +189,7 @@ class BybitMdProvider(MdProvider):
                 logger.debug(f"Thread (start): Name={t.name}, Alive={t.is_alive()}, Daemon={t.daemon}, Target={t._target}")
 
             while not self.stop_event.is_set():
-                time.sleep(0.05)
+                time.sleep(1)
 
         except KeyboardInterrupt:
             logger.info("KeyboardInterrupt received — shutting down.")