* Adding net9.0 TFM
Update build YAML to install net9
pin to preview6 in global.json
* Bump SDK package version
* Adding Net9 sample app.
* Updating the below packages to use 9x version for net9.0 tfm
- Microsoft.Extensions.Hosting
- Microsoft.Extensions.Hosting.Abstractions
- System.Collections.Immutable
- System.Diagnostics.DiagnosticSource
* Move condition to ItemGroup element instead of Choose-When pattern.
* Updated ApplicationInsights package version in Sample app to latest stable (1.3.0)
Shyju Krishnankutty
Jacob Viau
sarah