Convex for Android 0.6.0

This is a bug fix release of Convex for Android. It includes the following:

• Fix for a subscription crash in the core Rust client
• 16KB page support (#7)
• Bumped the Android NDK to 27.3.13750724

Available on Maven Central: https://central.sonatype.com/artifact/dev.convex/android-convexmobile/0.6.0

Include in your Gradle project dependencies with:

    implementation("dev.convex:android-convexmobile:0.6.0@aar") {
        isTransitive = true
    }