fix: revert span.status to getattr to fix wsgi/asgi mock tests

Author: RiyaChaturvedi37

opentelemetry-instrumentation/src/opentelemetry/instrumentation/_semconv.py

@@ -618,7 +618,7 @@ def _set_db_operation(
 
 
 def _set_span_status(span: Span, status: StatusCode) -> None:
-    current = span.status
+    current = getattr(span, "status", None)
     if current is None:
         span.set_status(Status(status))
         return