Update dependencies from...

Update dependencies from https://dev.azure.com/dnceng/internal/_git/dotnet-wpf-int build 20200111.6 (#2420)

- Microsoft.DotNet.Wpf.DncEng - 5.0.0-alpha.1.20061.6

eng/Version.Details.xml

@@ -75,9 +75,9 @@
       <Uri>https://github.com/dotnet/corefx</Uri>
       <Sha>a434a52ae3f1175bc1cad8b1a02b0921ef3b1f55</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.DotNet.Wpf.DncEng" Version="5.0.0-alpha.1.20060.6">
+    <Dependency Name="Microsoft.DotNet.Wpf.DncEng" Version="5.0.0-alpha.1.20061.6">
       <Uri>https://dev.azure.com/dnceng/internal/_git/dotnet-wpf-int</Uri>
-      <Sha>0dabd39028da53edccb34c85f8e35a3829e6bd45</Sha>
+      <Sha>c82d97ee9dfd64710ca1e86946a638847d456a18</Sha>
     </Dependency>
     <Dependency Name="System.IO.Packaging" Version="5.0.0-alpha1.19504.7" CoherentParentDependency="Microsoft.NETCore.App">
       <Uri>https://github.com/dotnet/corefx</Uri>

eng/Versions.props

@@ -114,6 +114,6 @@
       It is worth reiterating that this package *should not* be consumed to build the product.
   -->
   <PropertyGroup>
-    <MicrosoftDotNetWpfDncEngVersion>5.0.0-alpha.1.20060.6</MicrosoftDotNetWpfDncEngVersion>
+    <MicrosoftDotNetWpfDncEngVersion>5.0.0-alpha.1.20061.6</MicrosoftDotNetWpfDncEngVersion>
   </PropertyGroup>
 </Project>