Probably fix test_pygats

Signed-off-by: Sysoev, Vladimir <i@vsysoev.ru>

Author: Sysoev, Vladimir

tests/test_pygats.py

@@ -98,7 +98,7 @@ def test_random_string(string_length, character_set, expectation):
 def test_locate_on_screen(img_path, expectation, ctx_formatter, gen_photo):
     """Test locate_on_screen"""
     ctx = ctx_formatter
-    gen_photo
+    gen_photo()
     with expectation:
         print("Проверяем изображение:", img_path)
         if not os.path.exists(img_path):