update build.gradle of android

- upgrade gradle-version
- use the SDL2-template to define the cleaning task

android-project/build.gradle

@@ -6,7 +6,7 @@ buildscript {
 		google()
 	}
 	dependencies {
-		classpath 'com.android.tools.build:gradle:8.2.0'
+		classpath 'com.android.tools.build:gradle:8.2.2'
 
 		// NOTE: Do not place your application dependencies here; they belong
 		// in the individual module build.gradle files
@@ -20,6 +20,6 @@ allprojects {
 	}
 }
 
-tasks.register('clean', Delete) {
+task clean(type: Delete) {
 	delete rootProject.buildDir
 }