THRIFT-5746 Upgrade to net8
Client: netstd
Patch: Jens Geyer

This updates certain packages that became available now for 8.0.0
diff --git a/test/netstd/Client/Client.csproj b/test/netstd/Client/Client.csproj
index 0e1eaa3..aa90e2c 100644
--- a/test/netstd/Client/Client.csproj
+++ b/test/netstd/Client/Client.csproj
@@ -35,9 +35,9 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="System.Net.Http.WinHttpHandler" Version="7.0.0" />
+    <PackageReference Include="System.Net.Http.WinHttpHandler" Version="8.0.0" />
     <PackageReference Include="System.Runtime.Serialization.Primitives" Version="[4.3,)" />
-    <PackageReference Include="System.ServiceModel.Primitives" Version="6.0.0" />
+    <PackageReference Include="System.ServiceModel.Primitives" Version="6.2.0" />
     <PackageReference Include="System.Threading" Version="[4.3,)" />
   </ItemGroup>