Fix lint

Author: rads-1996

opentelemetry-api/src/opentelemetry/attributes/__init__.py

@@ -180,6 +180,7 @@ def _clean_extended_attribute_value(
         # Freeze mutable sequences defensively
         return tuple(cleaned_seq)
 
+    return value
 
 def _clean_extended_attribute(
     key: str, value: types.AnyValue, max_len: Optional[int]