updated csproj

Author: michaelgsharp

csharp/src/Microsoft.ML.OnnxRuntime/Microsoft.ML.OnnxRuntime.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="MSBuild.Sdk.Extras/3.0.44">
+<Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <!--- packaging properties -->
     <OrtPackageId Condition="'$(OrtPackageId)' == ''">Microsoft.ML.OnnxRuntime</OrtPackageId>
@@ -184,7 +184,7 @@
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="8.0.0" PrivateAssets="All" />
   </ItemGroup>
 
-  <ItemGroup Condition="'$(TargetFramework)' == 'net8.0'">
+  <ItemGroup Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net8.0'))">
 	<PackageReference Include="System.Numerics.Tensors" Version="9.0.0" />
   </ItemGroup>