Fix tests

Signed-off-by: Igoshev, Iaroslav <iaroslav.igoshev@intel.com>

modin/error_message.py

@@ -37,7 +37,7 @@ def not_implemented(cls, message: str = "") -> NoReturn:
 
     @classmethod
     def single_warning(
-        cls, message: str, category: type[Warning] | None = None
+        cls, message: str, category: Warning = None
     ) -> None:
         message_hash = hash(message)
         logger = get_logger()