Fix docstring

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

Author: blink1073

pymongo/synchronous/topology.py

@@ -228,7 +228,7 @@ def select_servers(
         operation_id: Optional[int] = None,
         deprioritized_servers: Optional[list[Server]] = None,
     ) -> tuple[list[Server], _ServerSelectionTelemetry]:
-        """Return a list of Servers matching selector, or time out.
+        """Return (servers, server_selection_telemetry) matching selector, or time out.
 
         :param selector: function that takes a list of Servers and returns
             a subset of them.