Lands beta changes. (#1006)

add_to_app/plugin/android_using_plugin/app/build.gradle

@@ -5,7 +5,7 @@ apply plugin: 'kotlin-android'
 apply plugin: 'kotlin-android-extensions'
 
 android {
-    compileSdkVersion 28
+    compileSdkVersion 31
     defaultConfig {
         applicationId "dev.flutter.example.androidusingplugin"
         minSdkVersion 19

add_to_app/plugin/android_using_plugin/build.gradle

@@ -1,7 +1,7 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
-    ext.kotlin_version = '1.3.50'
+    ext.kotlin_version = '1.6.0'
     repositories {
         google()
         jcenter()

add_to_app/plugin/flutter_module_using_plugin/pubspec.lock

@@ -93,6 +93,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "0.12.11"
+  material_color_utilities:
+    dependency: transitive
+    description:
+      name: material_color_utilities
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.3"
   meta:
     dependency: transitive
     description:
@@ -181,7 +188,7 @@ packages:
       name: test_api
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.4.3"
+    version: "0.4.8"
   typed_data:
     dependency: transitive
     description: