fix: update android build configuration

- Update compile_sdk_version and build_tools_version to 35
- Remove target_sdk_version from ext
- Update compileSdkVersion and targetSdkVersion in app/build.gradle to 35

Author: muzahidul-opti

android/build.gradle

@@ -24,10 +24,9 @@ rootProject.allprojects {
 
 
 ext {
-    compile_sdk_version = 36
-    build_tools_version = "36.0.0"
+    compile_sdk_version = 35
+    build_tools_version = "35.0.0"
     min_sdk_version = 21
-    target_sdk_version = 36
 }
 
 android {
@@ -41,7 +40,6 @@ android {
 
     defaultConfig {
         minSdkVersion min_sdk_version
-        targetSdkVersion target_sdk_version
         versionCode 1
         versionName version_name
         buildConfigField "String", "CLIENT_VERSION", "\"$version_name\""

example/android/app/build.gradle

@@ -25,7 +25,7 @@ if (flutterVersionName == null) {
 
 android {
     namespace "com.optimizely.optimizely_flutter_sdk_example"
-    compileSdkVersion 36
+    compileSdkVersion 35
 
     compileOptions {
         sourceCompatibility JavaVersion.VERSION_1_8
@@ -38,7 +38,7 @@ android {
         // You can update the following values to match your application needs. 
         // For more information, see: https://docs.flutter.dev/deployment/android#reviewing-the-build-configuration.
         minSdkVersion flutter.minSdkVersion
-        targetSdkVersion 36
+        targetSdkVersion 35   
         versionCode flutterVersionCode.toInteger()
         versionName flutterVersionName
     }