[Feature]: Show .Net 9 in list of frameworks

[IrinaPykhova]

Related Problem

.Net 9 is live, but nuget doesn't show it in list of supported frameworks for any package. For example:
https://www.nuget.org/packages/C1.WPF.Schedule#supportedframeworks-body-tab
https://www.nuget.org/packages/C1.ScheduleCore/#supportedframeworks-body-tab
https://www.nuget.org/packages/C1.DataCollection/9.0.20242.202-preview

The last shown version is .Net 8

The Elevator Pitch

please make sure that net9.0 and net9.0-platform is correctly computed and shown everywhere

Additional Context and Details

No response