update Android Gradle plugin to 8.7.1

Author: thestinger

build.gradle.kts

@@ -1,5 +1,5 @@
 plugins {
-    id("com.android.application") version "8.6.1" apply false
+    id("com.android.application") version "8.7.1" apply false
     id("org.jetbrains.kotlin.android") version "2.0.20" apply false
 }