Adds Java EE module to SDK manager environment to stop missing xml library...

Adds Java EE module to SDK manager environment to stop missing xml library exception when checking for licenses. (#16035)

packages/flutter_tools/lib/src/android/android_sdk.dart

@@ -332,6 +332,7 @@ class AndroidSdk {
     if (_sdkManagerEnv == null) {
       // If we can locate Java, then add it to the path used to run the Android SDK manager.
       _sdkManagerEnv = <String, String>{};
+      _sdkManagerEnv['SDKMANAGER_OPTS'] = '--add-modules java.se.ee';
       final String javaBinary = findJavaBinary();
       if (javaBinary != null) {
         _sdkManagerEnv['PATH'] =