support for .net 7

[adnan-kamili]

I am unable to use the package in my .net 7 app. Can you please add the support for the same?

[ahydrax]

Hi @adnan-kamili! I'll look into it

[vdrasutis]

I created #31 which should be enough I hope to run on .NET 7 and .NET 8 applications - did not tested...