Update Android SDK to 5.13.0 to include the Keystore crash fix #159

Description

We are still experiencing Android Keystore-related crashes when using LINE Login through flutter_line_sdk, similar to those reported in line/line-sdk-android#170.

The native Android SDK now includes a fix for Keystore failures during initialization and token persistence, released in version 5.13.0. However, flutter_line_sdk still declares the following dependency in android/build.gradle:

com.linecorp.linesdk:linesdk:5.11.1

As a result, Flutter applications using the default dependency do not receive this fix.

Actual behavior

LINE Login can crash the Android application on affected devices when a Keystore operation fails.

Expected behavior

The Flutter plugin should include the native SDK's Keystore error handling so that these failures do not crash the application.

Requested change

Could you update the Android SDK dependency to 5.13.0 or later and publish an updated Flutter package?

References

• Original issue: android.security.KeyStoreException occuring while trying to login with Line - sdk-version:5.10.1 line-sdk-android#170
• Native fix: fix: prevent crash when device Keystore fails during token persistence line-sdk-android#190
• Android SDK release: https://github.com/line/line-sdk-android/releases/tag/v5.13.0
• Current dependency: https://github.com/line/flutter_line_sdk/blob/master/android/build.gradle

Thank you!