Android: use Upper function for Unicode string

Hello @aeroxr1,

ICU support was removed from the original SQLCipher for Android library with the release of 3.5.1 almost 7 years ago. At the time, the integration required a large external data source and was cumbersome from an integration perspective. While it’s possible to integrate ICU with the newer version of SQLCipher for Android, we do not have information to share on the process. If you are looking for a supported solution, please feel free to reach out directly here support@zetetic.net to discuss a custom build.