Bugfix: Check connection status before attempting to reconnect (#438)

Author: maximpertsov

src/viam/robot/client.py

@@ -285,6 +285,9 @@ async def _check_connection(self, check_every: int, reconnect_every: int):
             if reconnect_every <= 0:
                 continue
 
+            if self._connected:
+                continue
+
             reconnect_attempts = self._options.dial_options.max_reconnect_attempts if self._options.dial_options else 3
 
             for _ in range(reconnect_attempts):