Updated lazy loaded logger_details (temporalio#593)

Author: TheCodeWrangler

temporalio/activity.py

@@ -459,7 +459,7 @@ def process(
                 if self.activity_info_on_extra:
                     # Extra can be absent or None, this handles both
                     extra = kwargs.get("extra", None) or {}
-                    extra["temporal_activity"] = context._logger_details
+                    extra["temporal_activity"] = context.logger_details
                     kwargs["extra"] = extra
                 if self.full_activity_info_on_extra:
                     # Extra can be absent or None, this handles both