Update dependencies from https://github.com/dotnet/arcade build 20190123.5 (#167)

This change updates the following dependencies
- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19073.5

eng/Version.Details.xml

@@ -2,9 +2,9 @@
 <Dependencies>
   <ProductDependencies></ProductDependencies>
   <ToolsetDependencies>
-    <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="1.0.0-beta.19072.5">
+    <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="1.0.0-beta.19073.5">
       <Uri>https://github.com/dotnet/arcade</Uri>
-      <Sha>044fa99d22e576fcfaf63f09ee9bba821855dddb</Sha>
+      <Sha>af8ab7d7ca13d5f129c31cfa7aeda19f6d168e6e</Sha>
     </Dependency>
   </ToolsetDependencies>
 </Dependencies>

global.json

@@ -12,6 +12,6 @@
     "version": "3.0.100-preview-009812"
   },
   "msbuild-sdks": {
-    "Microsoft.DotNet.Arcade.Sdk": "1.0.0-beta.19072.5"
+    "Microsoft.DotNet.Arcade.Sdk": "1.0.0-beta.19073.5"
   }
 }