Updated .NET Aspire guidance

[waldekmastykarz]

We've just updated our guidance for using Dev Proxy with .NET Aspire functions, based on the Dev Proxy .NET Aspire extensions v0.2. Check it out at https://learn.microsoft.com/microsoft-cloud/dev/dev-proxy/how-to/use-dev-proxy-with-dotnet-aspire and let us know if you've got any questions or comments.