Update dependencies from https://github.com/dotnet/winforms build 20211005.9 (#5457)

[main] Update dependencies from dotnet/winforms

eng/Version.Details.xml

 <?xml version="1.0" encoding="utf-8"?>
 <Dependencies>
   <ProductDependencies>
-    <Dependency Name="Microsoft.Private.Winforms" Version="7.0.0-alpha.1.21505.8">
+    <Dependency Name="Microsoft.Private.Winforms" Version="7.0.0-alpha.1.21505.9">
       <Uri>https://github.com/dotnet/winforms</Uri>
-      <Sha>c1f8d96e652f8b577b5f54f02c54c3de303b4bef</Sha>
+      <Sha>d2d46fa34eddbbadbcaa15f62b455bbf035ebbb2</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.Dotnet.WinForms.ProjectTemplates" Version="7.0.0-alpha.1.21505.8">
+    <Dependency Name="Microsoft.Dotnet.WinForms.ProjectTemplates" Version="7.0.0-alpha.1.21505.9">
       <Uri>https://github.com/dotnet/winforms</Uri>
-      <Sha>c1f8d96e652f8b577b5f54f02c54c3de303b4bef</Sha>
+      <Sha>d2d46fa34eddbbadbcaa15f62b455bbf035ebbb2</Sha>
     </Dependency>
     <Dependency Name="System.CodeDom" Version="7.0.0-alpha.1.21480.1" CoherentParentDependency="Microsoft.Private.Winforms">
       <Uri>https://github.com/dotnet/runtime</Uri>

eng/Versions.props

@@ -9,7 +9,7 @@
   </PropertyGroup>
   <!-- NuGet Package Versions -->
   <PropertyGroup>
-    <MicrosoftPrivateWinformsVersion>7.0.0-alpha.1.21505.8</MicrosoftPrivateWinformsVersion>
+    <MicrosoftPrivateWinformsVersion>7.0.0-alpha.1.21505.9</MicrosoftPrivateWinformsVersion>
   </PropertyGroup>
   <!-- Packages that come from https://github.com/dotnet/coreclr -->
   <PropertyGroup>