Document how to use createdump on native AOT apps

In .NET 8, using `createdump` for native AOT applications require some manual steps:
- Need the C++ runtime
- Need access to the 8.0 .NET core version of `createdump`. The .NET core version of `createdump` was [modified ](https://github.com/dotnet/runtime/issues/88904)to work with native AOT applications.

This issue tracks to give the appropriate information for the relevant folks (for example, container steps) so that they can successfully deploy `createdump` to generate dumps for their application. The main diagnostic document (currently on https://github.com/dotnet/docs/pull/36626, Production Debugging section) needs to be updated with information as well.