Currently we still generate API documentation from the API-30 sources because the API-31 ones are not published yet.

When published, we should update this to API-31:

https://github.com/xamarin/xamarin-android/blob/main/build-tools/xaprepare/xaprepare/ConfigAndData/Dependencies/AndroidToolchain.cs#L67

To see if the new file has been released, search for sources-31 in https://dl-ssl.google.com/android/repository/repository2-1.xml.