If I change my client to Japanese, is it bannable?

Hello. I've been a Japanese learner for the past 5-6 years and absolutely love the way the voices sound in the game. The guide I found online is: 1. Go to your League of legends folder 2. Go to Config 3. Open LeagueClientSettings.yaml 4. Change curent language into ja_JP 5. Save the changes Is that bannable? If yes, are there any other methods? Thank you in advance!
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