Update dependencies from https://github.com/dotnet/arcade build 20190930.3 (#3701)

- Microsoft.DotNet.Arcade.Sdk - 5.0.0-beta.19480.3
- Microsoft.DotNet.SignTool - 5.0.0-beta.19480.3

Author: dotnet-maestro[bot]

eng/Version.Details.xml

@@ -3,13 +3,13 @@
   <ProductDependencies>
   </ProductDependencies>
   <ToolsetDependencies>
-    <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="5.0.0-beta.19477.2">
+    <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="5.0.0-beta.19480.3">
       <Uri>https://github.com/dotnet/arcade</Uri>
-      <Sha>14abaee3dba41fbe608431fb6a4f4b2435dcac33</Sha>
+      <Sha>238f1bbb23ba67616818d0b242c5b55a18edec55</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.DotNet.SignTool" Version="5.0.0-beta.19477.2">
+    <Dependency Name="Microsoft.DotNet.SignTool" Version="5.0.0-beta.19480.3">
       <Uri>https://github.com/dotnet/arcade</Uri>
-      <Sha>14abaee3dba41fbe608431fb6a4f4b2435dcac33</Sha>
+      <Sha>238f1bbb23ba67616818d0b242c5b55a18edec55</Sha>
     </Dependency>
     <Dependency Name="Microsoft.NET.HostModel" Version="3.1.0-preview1.19463.3">
       <Uri>https://github.com/dotnet/core-setup</Uri>

eng/Versions.props

@@ -24,7 +24,7 @@
     <PlatformAbstractionsVersion>2.0.0</PlatformAbstractionsVersion>
     <SystemDiagnosticsFileVersionInfoVersion>4.0.0</SystemDiagnosticsFileVersionInfoVersion>
     <SystemReflectionMetadataVersion>1.5.0</SystemReflectionMetadataVersion>
-    <MicrosoftDotNetSignToolVersion>5.0.0-beta.19477.2</MicrosoftDotNetSignToolVersion>
+    <MicrosoftDotNetSignToolVersion>5.0.0-beta.19480.3</MicrosoftDotNetSignToolVersion>
   </PropertyGroup>
   <!-- Get .NET Framework reference assemblies from NuGet packages -->
   <PropertyGroup>

global.json

@@ -6,7 +6,7 @@
     }
   },
   "msbuild-sdks": {
-    "Microsoft.DotNet.Arcade.Sdk": "5.0.0-beta.19477.2",
+    "Microsoft.DotNet.Arcade.Sdk": "5.0.0-beta.19480.3",
     "Microsoft.DotNet.Helix.Sdk": "2.0.0-beta.19215.12"
   }
 }