Merge pull request #8 from MUN1Z/feature/update_to_dot_net_8

feat: update to dot net 8

Author: tilkinsc

Lua.NET.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net7.0;net6.0</TargetFrameworks>
+    <TargetFrameworks>net8.0;net7.0;net6.0</TargetFrameworks>
     <ImplicitUsings>enable</ImplicitUsings>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <Nullable>enable</Nullable>