Merging internal commits for release/3.1 (#34309)

* [internal/release/3.1] Update dependencies from dnceng/internal/dotnet-efcore

* [internal/release/3.1] Update dependencies from dnceng/internal/dotnet-aspnetcore-tooling

 - Merge remote-tracking branch 'origin/internal/release/3.1' into darc-internal/release/3.1-453f35a7-98c5-426b-be65-d9f77e888b5c

* Update baseline/SDK

Co-authored-by: dotnet-bot <dotnet-bot@microsoft.com>
Co-authored-by: DotNet Bot <dn-bot@microsoft.com>
Co-authored-by: Will Godbe <wigodbe@microsoft.com>

NuGet.config

@@ -4,14 +4,18 @@
     <clear />
     <!--Begin: Package sources managed by Dependency Flow automation. Do not edit the sources below.-->
     <!--  Begin: Package sources from dotnet-aspnetcore-tooling -->
+    <add key="darc-int-dotnet-aspnetcore-tooling-cd61ca2" value="https://pkgs.dev.azure.com/dnceng/_packaging/darc-int-dotnet-aspnetcore-tooling-cd61ca2e/nuget/v3/index.json" />
     <!--  End: Package sources from dotnet-aspnetcore-tooling -->
     <!--  Begin: Package sources from dotnet-corefx -->
     <!--  End: Package sources from dotnet-corefx -->
     <!--  Begin: Package sources from dotnet-core-setup -->
+    <add key="darc-int-dotnet-core-setup-3a75b80" value="https://pkgs.dev.azure.com/dnceng/_packaging/darc-int-dotnet-core-setup-3a75b805/nuget/v3/index.json" />
     <!--  End: Package sources from dotnet-core-setup -->
     <!--  Begin: Package sources from dotnet-efcore -->
+    <add key="darc-int-dotnet-efcore-f81aa66" value="https://pkgs.dev.azure.com/dnceng/_packaging/darc-int-dotnet-efcore-f81aa66b/nuget/v3/index.json" />
     <!--  End: Package sources from dotnet-efcore -->
     <!--  Begin: Package sources from dotnet-extensions -->
+    <add key="darc-int-dotnet-extensions-904ee5c" value="https://pkgs.dev.azure.com/dnceng/_packaging/darc-int-dotnet-extensions-904ee5cc/nuget/v3/index.json" />
     <!--  End: Package sources from dotnet-extensions -->
     <!--End: Package sources managed by Dependency Flow automation. Do not edit the sources above.-->
     <add key="dotnet-core" value="https://dotnetfeed.blob.core.windows.net/dotnet-core/index.json" />
@@ -24,12 +28,16 @@
     <clear />
     <!--Begin: Package sources managed by Dependency Flow automation. Do not edit the sources below.-->
     <!--  Begin: Package sources from dotnet-extensions -->
+    <add key="darc-int-dotnet-extensions-904ee5c" value="true" />
     <!--  End: Package sources from dotnet-extensions -->
     <!--  Begin: Package sources from dotnet-aspnetcore-tooling -->
+    <add key="darc-int-dotnet-aspnetcore-tooling-cd61ca2" value="true" />
     <!--  End: Package sources from dotnet-aspnetcore-tooling -->
     <!--  Begin: Package sources from dotnet-efcore -->
+    <add key="darc-int-dotnet-efcore-f81aa66" value="true" />
     <!--  End: Package sources from dotnet-efcore -->
     <!--  Begin: Package sources from dotnet-core-setup -->
+    <add key="darc-int-dotnet-core-setup-3a75b80" value="true" />
     <!--  End: Package sources from dotnet-core-setup -->
     <!--  Begin: Package sources from dotnet-corefx -->
     <!--  End: Package sources from dotnet-corefx -->