android: Update AGP to 8.1.2

src/android/build.gradle.kts

@@ -3,8 +3,8 @@
 
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 plugins {
-    id("com.android.application") version "8.0.2" apply false
-    id("com.android.library") version "8.0.2" apply false
+    id("com.android.application") version "8.1.2" apply false
+    id("com.android.library") version "8.1.2" apply false
     id("org.jetbrains.kotlin.android") version "1.8.21" apply false
 }