Update dependencies from https://github.com/dotnet/winforms build 20200206.1 (#2513)

- Microsoft.Private.Winforms - 5.0.0-preview.1.20106.1

Author: dotnet-maestro[bot]

eng/Version.Details.xml

@@ -1,9 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Dependencies>
   <ProductDependencies>
-    <Dependency Name="Microsoft.Private.Winforms" Version="5.0.0-preview.1.20105.4">
+    <Dependency Name="Microsoft.Private.Winforms" Version="5.0.0-preview.1.20106.1">
       <Uri>https://github.com/dotnet/winforms</Uri>
-      <Sha>aae9e89912c89412e7a53b53b65f0ca1b4abb6f3</Sha>
+      <Sha>eb10d0cf19827b3849bb42d141c8b4d4779882f9</Sha>
     </Dependency>
   </ProductDependencies>
   <ToolsetDependencies>

eng/Versions.props

@@ -9,7 +9,7 @@
   </PropertyGroup>
   <!-- NuGet Package Versions -->
   <PropertyGroup>
-    <MicrosoftPrivateWinformsVersion>5.0.0-preview.1.20105.4</MicrosoftPrivateWinformsVersion>
+    <MicrosoftPrivateWinformsVersion>5.0.0-preview.1.20106.1</MicrosoftPrivateWinformsVersion>
   </PropertyGroup>
   <!-- Packages that come from https://github.com/dotnet/coreclr -->
   <PropertyGroup>