Describe the bug
RuStore apps are not showing update date which is provided by API.

To Reproduce

1. Add any application from RuStore, like [https://www.rustore.ru/catalog/app/ru.nspk.mirpay]
2. Install the app
3. Go to the Apps tab of the main screen
4. See Changes instead of application update date under version

Please complete the following information:

• Device: Pixel 8a
• OS: Android 16 BP2A.250705.008
• Obtainium Version: 1.2.2

Additional context
There is no updatedAt field in JSON data, there is appVerUpdatedAt which contains valid timestamp of latest version release.