Update dependencies from https://github.com/dotnet/arcade build 20200811.8

Microsoft.DotNet.Arcade.Sdk
 From Version 1.0.0-beta.19372.10 -> To Version 5.0.0-beta.20411.8

NuGet.config

@@ -5,4 +5,5 @@
     <add key="dotnet-core" value="https://dotnetfeed.blob.core.windows.net/dotnet-core/index.json" />
     <add key="nuget.org" value="https://api.nuget.org/v3/index.json" />
   </packageSources>
+  <disabledPackageSources />
 </configuration>

eng/Version.Details.xml

@@ -3,9 +3,9 @@
   <ProductDependencies>
   </ProductDependencies>
   <ToolsetDependencies>
-    <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="5.0.0-beta.20407.3">
+    <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="5.0.0-beta.20411.8">
       <Uri>https://github.com/dotnet/arcade</Uri>
-      <Sha>ea8f37e8982dc22022b33c5e151081ad04d923a6</Sha>
+      <Sha>ecec08a0eebbd92bb9538e351d475582551d9092</Sha>
     </Dependency>
   </ToolsetDependencies>
 </Dependencies>

eng/common/sdk-task.ps1

@@ -42,6 +42,7 @@ function Build([string]$target) {
     /p:Configuration=$configuration `
     /p:RepoRoot=$RepoRoot `
     /p:BaseIntermediateOutputPath=$outputPath `
+    /v:$verbosity `
     @properties
 }
 

global.json

@@ -5,6 +5,6 @@
     }
   },
   "msbuild-sdks": {
-    "Microsoft.DotNet.Arcade.Sdk": "5.0.0-beta.20407.3"
+    "Microsoft.DotNet.Arcade.Sdk": "5.0.0-beta.20411.8"
   }
 }