App must use Google Play Billing Library version 8.0.0 or later
To provide users with a safe and secure experience, all apps are required to meet Google Play Billing Library requirements.
Your app uses an old version of Google Play Billing Library. From Nov 1, 2026, all apps must use version 8.0.0 or later.
Update to a newer version by this date to prevent your updates from being rejected.
Please, how to fix ?