Upgrade to latest Android Gradle Plugin

- Works with Android Studio

build.gradle.kts

@@ -5,7 +5,7 @@ buildscript {
   }
 
   dependencies {
-    classpath("com.android.tools.build:gradle:4.1.0")
+    classpath("com.android.tools.build:gradle:4.2.1")
     classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:1.3.72")
   }
 }