Update dependencies from https://github.com/dotnet/core-setup build 20190913.6 (#26718)

- Microsoft.NETCore.App - 5.0.0-alpha1.19463.6

Author: dotnet-maestro[bot]

eng/Version.Details.xml

@@ -27,9 +27,9 @@
       <Uri>https://github.com/dotnet/corefx</Uri>
       <Sha>31a5bba0e79a5ae875f691d70ec3b9789691136d</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.NETCore.App" Version="5.0.0-alpha1.19462.26">
+    <Dependency Name="Microsoft.NETCore.App" Version="5.0.0-alpha1.19463.6">
       <Uri>https://github.com/dotnet/core-setup</Uri>
-      <Sha>580567cedf08cbb182a2d8e93fd10e1029e30106</Sha>
+      <Sha>9042fe6c81aa3b47f58ccd94ff02e42f9f7a4e46</Sha>
     </Dependency>
     <Dependency Name="optimization.IBC.CoreCLR" Version="99.99.99-master-20190716.1">
       <Uri>https://dev.azure.com/dnceng/internal/_git/dotnet-optimization</Uri>

eng/Versions.props

@@ -23,7 +23,7 @@
     <MicrosoftNETCorePlatformsVersion>5.0.0-alpha1.19462.15</MicrosoftNETCorePlatformsVersion>
     <MicrosoftBclAsyncInterfacesVersion>1.0.0-preview7.19326.2</MicrosoftBclAsyncInterfacesVersion>
     <!-- core-setup -->
-    <MicrosoftNETCoreAppVersion>5.0.0-alpha1.19462.26</MicrosoftNETCoreAppVersion>
+    <MicrosoftNETCoreAppVersion>5.0.0-alpha1.19463.6</MicrosoftNETCoreAppVersion>
     <!-- dotnet-optimization -->
     <optimizationIBCCoreCLRVersion>99.99.99-master-20190716.1</optimizationIBCCoreCLRVersion>
     <optimizationPGOCoreCLRVersion>99.99.99-master-20190716.1</optimizationPGOCoreCLRVersion>