Merged PR 43908: [internal/release/9.0] Merge from public

Merge from public release/9.0 to internal/release/9.0 and resolve conflicts if necessary

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#### AI description  (iteration 1)
#### PR Classification
Dependency update

#### PR Summary
This pull request updates several dependencies to their latest versions in preparation for the 9.0 release.
- Updated dependency versions and SHAs in `/eng/Version.Details.xml` for `Microsoft.Private.Winforms`, `Microsoft.Dotnet.WinForms.ProjectTemplates`, and various `System.*` libraries.

Author: mmitche

NuGet.config

@@ -3,6 +3,11 @@
 <configuration>
   <packageSources>
     <clear />
+    <!--Begin: Package sources managed by Dependency Flow automation. Do not edit the sources below.-->
+    <!--  Begin: Package sources from dotnet-winforms -->
+    <add key="darc-pub-dotnet-winforms-5f03f3d" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/darc-pub-dotnet-winforms-5f03f3d8/nuget/v3/index.json" />
+    <!--  End: Package sources from dotnet-winforms -->
+    <!--End: Package sources managed by Dependency Flow automation. Do not edit the sources above.-->
     <add key="dotnet-eng" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-eng/nuget/v3/index.json" />
     <add key="dotnet-tools" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-tools/nuget/v3/index.json" />
     <add key="dotnet-public" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-public/nuget/v3/index.json" />