fix linter, fix ci, fix tests

tests/test_blacklist_middleware.py

@@ -6,7 +6,6 @@ from unittest.mock import AsyncMock, MagicMock, patch
 
 import pytest
 from aiogram.types import CallbackQuery, Message
-
 from helper_bot.middlewares.blacklist_middleware import BlacklistMiddleware
 
 
@@ -109,4 +108,4 @@ class TestBlacklistMiddleware:
         result = await middleware(mock_handler, event, data)
 
         mock_handler.assert_called_once_with(event, data)
-        assert result == "handler_ok"
+        assert result == "handler_ok"