Update dependencies from https://github.com/dotnet/core-setup build 20190712.15 (#3418)

- Microsoft.NET.HostModel - 3.0.0-preview8-27912-15

Author: dotnet-maestro[bot]

eng/Version.Details.xml

@@ -11,9 +11,9 @@
       <Uri>https://github.com/dotnet/arcade</Uri>
       <Sha>15f50ca6a9d0b441c9927421657fb9dc91206cc9</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.NET.HostModel" Version="3.0.0-preview8-27911-01">
+    <Dependency Name="Microsoft.NET.HostModel" Version="3.0.0-preview8-27912-15">
       <Uri>https://github.com/dotnet/core-setup</Uri>
-      <Sha>85dba54a1c451c736ef4861d112337cdfd95b890</Sha>
+      <Sha>a7d2e0d27b2a6be92b620de7c321a29fe42fca53</Sha>
     </Dependency>
   </ToolsetDependencies>
 </Dependencies>

eng/Versions.props

@@ -15,7 +15,7 @@
     <MicrosoftBuildFrameworkVersion>15.4.8</MicrosoftBuildFrameworkVersion>
     <MicrosoftBuildUtilitiesCoreVersion>15.4.8</MicrosoftBuildUtilitiesCoreVersion>
     <MicrosoftExtensionsDependencyModelVersion>2.1.0-preview2-26306-03</MicrosoftExtensionsDependencyModelVersion>
-    <MicrosoftNETHostModelVersion>3.0.0-preview8-27911-01</MicrosoftNETHostModelVersion>
+    <MicrosoftNETHostModelVersion>3.0.0-preview8-27912-15</MicrosoftNETHostModelVersion>
     <NETStandardLibraryNETFrameworkVersion>2.0.1-servicing-26011-01</NETStandardLibraryNETFrameworkVersion>
     <NewtonsoftJsonVersion>9.0.1</NewtonsoftJsonVersion>
     <NuGetBuildTasksPackVersion>5.2.0-rtm.6067</NuGetBuildTasksPackVersion>