Warning message saying "Plugin use a deprecated version of the Android embedding."

```
The plugins `flutter_stetho` use a deprecated version of the Android embedding.
To avoid unexpected runtime failures, or future build failures, try to see if these plugins support the Android V2 embedding. Otherwise, consider removing them since a future release of Flutter will remove these deprecated APIs.
If you are plugin author, take a look at the docs for migrating the plugin to the V2 embedding: https://flutter.dev/go/android-plugin-migration.
```
I am getting above warning message by pub, and it seems like migration into V2 is required to get rid of this warning.

Read the Android plugin migration guide linked in the issue, then inspect flutter_stetho's Android implementation to identify the deprecated embedding usage. Reproduce the warning with the package's pub or build command; done means the deprecated-embedding warning no longer appears.

Written by the indexing model from the issue text.