fix: fix import of aws_lambda_logging to relative import

Author: nmoutschen

python/aws_lambda_powertools/logging/logger.py

@@ -5,7 +5,7 @@
 from distutils.util import strtobool
 from typing import Any, Callable, Dict
 
-import aws_lambda_logging
+from . import aws_lambda_logging
 
 from ..helper.models import MetricUnit, build_lambda_context_model, build_metric_unit_from_str