set stdout as default logging stream

Author: Artur Shiriev

lite_bootstrap/instruments/logging_instrument.py

@@ -58,7 +58,7 @@ def __init__(
             logging_buffer_capacity: int,
             logging_flush_level: int,
             logging_log_level: int,
-            log_stream: typing.Any = None,  # noqa: ANN401
+            log_stream: typing.Any = sys.stdout,  # noqa: ANN401
             **kwargs: typing.Any,  # noqa: ANN401
         ) -> None:
             super().__init__(*args, **kwargs)