Update dependencies from https://github.com/dotnet/arcade build 20190119.2 (#5012)

This change updates the following dependencies
- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19069.2

eng/Version.Details.xml

@@ -21,9 +21,9 @@
     </Dependency>
   </ProductDependencies>
   <ToolsetDependencies>
-    <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="1.0.0-beta.19068.4">
+    <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="1.0.0-beta.19069.2">
       <Uri>https://github.com/dotnet/arcade</Uri>
-      <Sha>4de204b5decdcee471d186e2290a09e35c5c3996</Sha>
+      <Sha>07ce1f4430b689a7e3aae70a34822c01473cf258</Sha>
     </Dependency>
   </ToolsetDependencies>
 </Dependencies>

global.json

@@ -3,6 +3,6 @@
     "dotnet": "2.1.300"
   },
   "msbuild-sdks": {
-    "Microsoft.DotNet.Arcade.Sdk": "1.0.0-beta.19068.4"
+    "Microsoft.DotNet.Arcade.Sdk": "1.0.0-beta.19069.2"
   }
 }