Update dependencies from https://dev.azure.com/dnceng/internal/_git/dotnet-wpf-int build 20200306.9 (#2727)

- Microsoft.DotNet.Wpf.DncEng - 5.0.0-preview.3.20156.9

Co-authored-by: dotnet-maestro[bot] <dotnet-maestro[bot]@users.noreply.github.com>

Author: dotnet-maestro[bot]

eng/Version.Details.xml

@@ -71,9 +71,9 @@
       <Uri>https://github.com/dotnet/corefx</Uri>
       <Sha>8d21b79b924d29088dbde46d42737a657d466b5e</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.DotNet.Wpf.DncEng" Version="5.0.0-preview.3.20156.4">
+    <Dependency Name="Microsoft.DotNet.Wpf.DncEng" Version="5.0.0-preview.3.20156.9">
       <Uri>https://dev.azure.com/dnceng/internal/_git/dotnet-wpf-int</Uri>
-      <Sha>407e6290640a161fa492cf469a2e106fe36348f3</Sha>
+      <Sha>fd61c92ea60bdc03b8aa93609cc8ef6040728c97</Sha>
     </Dependency>
     <Dependency Name="System.IO.Packaging" Version="5.0.0-alpha1.19512.1" CoherentParentDependency="Microsoft.Private.Winforms">
       <Uri>https://github.com/dotnet/corefx</Uri>

eng/Versions.props

@@ -97,6 +97,6 @@
     <SystemReflectionMetadataLoadContextPackage>System.Reflection.MetadataLoadContext</SystemReflectionMetadataLoadContextPackage>
   </PropertyGroup>
   <PropertyGroup>
-    <MicrosoftDotNetWpfDncEngVersion>5.0.0-preview.3.20156.4</MicrosoftDotNetWpfDncEngVersion>
+    <MicrosoftDotNetWpfDncEngVersion>5.0.0-preview.3.20156.9</MicrosoftDotNetWpfDncEngVersion>
   </PropertyGroup>
 </Project>