update gradle plugin version & compile sdk version

Author: Rushabhshroff

android/build.gradle

@@ -8,7 +8,7 @@ buildscript {
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:4.1.0'
+        classpath 'com.android.tools.build:gradle:8.6.0'
     }
 }
 
@@ -23,7 +23,7 @@ apply plugin: 'com.android.library'
 
 android {
     namespace 'com.browserstack.fluttersystemproxy.flutter_system_proxy'
-    compileSdkVersion 30
+    compileSdkVersion 35
 
     defaultConfig {
         minSdkVersion 16

example/android/build.gradle

@@ -5,7 +5,7 @@ buildscript {
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:4.1.0'
+        classpath 'com.android.tools.build:gradle:8.6.0'
     }
 }
 
@@ -22,6 +22,6 @@ subprojects {
     project.evaluationDependsOn(':app')
 }
 
-task clean(type: Delete) {
+tasks.register("clean", Delete) {
     delete rootProject.buildDir
 }