fix ukr/rus (#394)

Co-authored-by: Clémentine Fourrier <[email protected]>

Author: hynky1999

src/lighteval/tasks/templates/utils/translation_literals.py

@@ -631,7 +631,7 @@ def __getattribute__(self, name: str) -> str:
         language=Language.RUSSIAN,
         question_word="вопрос",
         answer="ответ",
-        confirmation_word="не так ли",
+        confirmation_word="верно",
         yes="да",
         no="нет",
         also="к тому же",
@@ -936,7 +936,7 @@ def __getattribute__(self, name: str) -> str:
         language=Language.UKRAINIAN,
         question_word="питання",
         answer="відповідь",
-        confirmation_word="правда",
+        confirmation_word="вірно",
         yes="так",
         no="ні",
         also="також",