Update android.gradle.plugin

Author: renovate[bot]

gradle/libs.versions.toml

@@ -4,7 +4,7 @@ android-minSdk = "21"
 android-targetSdk = "34"
 
 kotlin = "1.9.23"
-android-gradle-plugin = "8.4.0"
+android-gradle-plugin = "8.12.1"
 ksp = "1.9.23-1.0.20"
 spotless = "6.25.0"
 detekt = "1.23.6"