Fix M.E.AI package refs

Author: stephentoub

src/Libraries/Microsoft.Extensions.AI.AzureAIInference/Microsoft.Extensions.AI.AzureAIInference.csproj

@@ -29,6 +29,9 @@
 
   <ItemGroup>
     <PackageReference Include="Azure.AI.Inference" />
+  </ItemGroup>
+
+  <ItemGroup Condition="'$(TargetFrameworkIdentifier)' != '.NETCoreApp'">
     <PackageReference Include="System.Memory.Data" />
     <PackageReference Include="System.Text.Json" />
   </ItemGroup>

src/Libraries/Microsoft.Extensions.AI.OpenAI/Microsoft.Extensions.AI.OpenAI.csproj

@@ -33,6 +33,9 @@
 
   <ItemGroup>
     <PackageReference Include="OpenAI" />
+  </ItemGroup>
+
+  <ItemGroup Condition="'$(TargetFrameworkIdentifier)' != '.NETCoreApp'">
     <PackageReference Include="System.Memory.Data" />
     <PackageReference Include="System.Text.Json" />
   </ItemGroup>

src/Libraries/Microsoft.Extensions.AI/Microsoft.Extensions.AI.csproj

@@ -44,6 +44,9 @@
     <PackageReference Include="Microsoft.Extensions.Caching.Abstractions" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" />
     <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" />
+  </ItemGroup>
+
+  <ItemGroup Condition="'$(TargetFrameworkIdentifier)' != '.NETCoreApp'">
     <PackageReference Include="System.Diagnostics.DiagnosticSource" />
     <PackageReference Include="System.Text.Json" />
     <PackageReference Include="System.Threading.Channels" />