Update dependencies from https://github.com/dotnet/wpf build 20210901.4 (#2061)

[release/6.0-rc1] Update dependencies from dotnet/wpf
- Coherency Updates:
  - Microsoft.Private.Winforms: from 6.0.0-rc.1.21451.12 to 6.0.0-rc.1.21451.15 (parent: Microsoft.DotNet.Wpf.GitHub)
  - Microsoft.Private.Winforms: from 6.0.0-rc.1.21451.12 to 6.0.0-rc.1.21451.15 (parent: Microsoft.DotNet.Wpf.GitHub)
  - Microsoft.Private.Winforms: from 6.0.0-rc.1.21451.12 to 6.0.0-rc.1.21451.15 (parent: Microsoft.DotNet.Wpf.GitHub)
  - Microsoft.Private.Winforms: from 6.0.0-rc.1.21451.12 to 6.0.0-rc.1.21451.15 (parent: Microsoft.DotNet.Wpf.GitHub)
  - Microsoft.Dotnet.WinForms.ProjectTemplates: from 6.0.0-rc.1.21451.12 to 6.0.0-rc.1.21451.15 (parent: Microsoft.DotNet.Wpf.GitHub)

Author: dotnet-maestro[bot]

eng/Version.Details.xml

@@ -5,17 +5,17 @@
       <Uri>https://github.com/dotnet/runtime</Uri>
       <Sha>d7619cd4b165c13430484e381042f055d4c5a9c7</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.Private.Winforms" Version="6.0.0-rc.1.21451.12" CoherentParentDependency="Microsoft.DotNet.Wpf.GitHub">
+    <Dependency Name="Microsoft.Private.Winforms" Version="6.0.0-rc.1.21451.15" CoherentParentDependency="Microsoft.DotNet.Wpf.GitHub">
       <Uri>https://github.com/dotnet/winforms</Uri>
-      <Sha>938972a23963d20b19298f05e53c6fd27ac2e57f</Sha>
+      <Sha>546b5c1f0451e855121c02f8d9f8b12788e6c8f8</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.DotNet.Wpf.GitHub" Version="6.0.0-rc.1.21451.1">
+    <Dependency Name="Microsoft.DotNet.Wpf.GitHub" Version="6.0.0-rc.1.21451.4">
       <Uri>https://github.com/dotnet/wpf</Uri>
-      <Sha>1dc7216102edb876af4793d41d15aac81d2c9b44</Sha>
+      <Sha>d62caf8a5fb9bc507457b6925cbf621720e268c7</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.NET.Sdk.WindowsDesktop" Version="6.0.0-rc.1.21451.1">
+    <Dependency Name="Microsoft.NET.Sdk.WindowsDesktop" Version="6.0.0-rc.1.21451.4">
       <Uri>https://github.com/dotnet/wpf</Uri>
-      <Sha>1dc7216102edb876af4793d41d15aac81d2c9b44</Sha>
+      <Sha>d62caf8a5fb9bc507457b6925cbf621720e268c7</Sha>
     </Dependency>
     <Dependency Name="Microsoft.NETCore.App.Ref" Version="6.0.0-rc.1.21451.13" CoherentParentDependency="Microsoft.Private.Winforms">
       <Uri>https://github.com/dotnet/runtime</Uri>
@@ -29,13 +29,13 @@
       <Uri>https://github.com/dotnet/runtime</Uri>
       <Sha>d7619cd4b165c13430484e381042f055d4c5a9c7</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.Dotnet.WinForms.ProjectTemplates" Version="6.0.0-rc.1.21451.12" CoherentParentDependency="Microsoft.DotNet.Wpf.GitHub">
+    <Dependency Name="Microsoft.Dotnet.WinForms.ProjectTemplates" Version="6.0.0-rc.1.21451.15" CoherentParentDependency="Microsoft.DotNet.Wpf.GitHub">
       <Uri>https://github.com/dotnet/winforms</Uri>
-      <Sha>938972a23963d20b19298f05e53c6fd27ac2e57f</Sha>
+      <Sha>546b5c1f0451e855121c02f8d9f8b12788e6c8f8</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.DotNet.Wpf.ProjectTemplates" Version="6.0.0-rc.1.21451.1">
+    <Dependency Name="Microsoft.DotNet.Wpf.ProjectTemplates" Version="6.0.0-rc.1.21451.4">
       <Uri>https://github.com/dotnet/wpf</Uri>
-      <Sha>1dc7216102edb876af4793d41d15aac81d2c9b44</Sha>
+      <Sha>d62caf8a5fb9bc507457b6925cbf621720e268c7</Sha>
     </Dependency>
   </ProductDependencies>
   <ToolsetDependencies>

eng/Versions.props

@@ -18,8 +18,8 @@
     <NETCoreAppMaximumVersion>6.0</NETCoreAppMaximumVersion>
     <NETCoreAppFrameworkVersion>6.0</NETCoreAppFrameworkVersion>
     <NETCoreAppFramework>net$(NETCoreAppFrameworkVersion)</NETCoreAppFramework>
-    <MicrosoftDotnetWinFormsProjectTemplatesVersion>6.0.0-rc.1.21451.12</MicrosoftDotnetWinFormsProjectTemplatesVersion>
-    <MicrosoftDotNetWpfProjectTemplatesVersion>6.0.0-rc.1.21451.1</MicrosoftDotNetWpfProjectTemplatesVersion>
+    <MicrosoftDotnetWinFormsProjectTemplatesVersion>6.0.0-rc.1.21451.15</MicrosoftDotnetWinFormsProjectTemplatesVersion>
+    <MicrosoftDotNetWpfProjectTemplatesVersion>6.0.0-rc.1.21451.4</MicrosoftDotNetWpfProjectTemplatesVersion>
   </PropertyGroup>
   <!--
     Servicing build settings for setup packages. Instructions:
@@ -52,9 +52,9 @@
     <MicrosoftInternalRuntimeWindowsDesktopTransportVersion>6.0.0-rc.1.21451.13</MicrosoftInternalRuntimeWindowsDesktopTransportVersion>
     <VSRedistCommonNetCoreSharedFrameworkx6460PackageVersion>6.0.0-rc.1.21451.13</VSRedistCommonNetCoreSharedFrameworkx6460PackageVersion>
     <!-- winforms -->
-    <MicrosoftPrivateWinformsVersion>6.0.0-rc.1.21451.12</MicrosoftPrivateWinformsVersion>
+    <MicrosoftPrivateWinformsVersion>6.0.0-rc.1.21451.15</MicrosoftPrivateWinformsVersion>
     <!-- wpf -->
-    <MicrosoftDotNetWpfGitHubVersion>6.0.0-rc.1.21451.1</MicrosoftDotNetWpfGitHubVersion>
+    <MicrosoftDotNetWpfGitHubVersion>6.0.0-rc.1.21451.4</MicrosoftDotNetWpfGitHubVersion>
     <!-- Not auto-updated. -->
     <MicrosoftBuildVersion>15.7.179</MicrosoftBuildVersion>
     <MicrosoftBuildFrameworkVersion>$(MicrosoftBuildVersion)</MicrosoftBuildFrameworkVersion>