Feature request type

enhancement

Is your feature request related to a problem? Please describe

dotnet 6 will reach end-of-life by Nov 12, 2024 (see https://learn.microsoft.com/en-us/lifecycle/products/microsoft-net-and-net-core)

Describe the solution you'd like

support only the latest LTS version of dotnet

Describe alternatives you've considered

No response

Additional context

this blocks #379