[main] Update dependencies from dotnet/arcade (#6478)

This pull request updates the following dependencies

From https://github.com/dotnet/arcade
Subscription: 93d865d2-823f-4e4d-e0b6-08d91b0a84f2
Build: 20210531.1
Date Produced: 5/31/2021 7:30 PM
Commit: c7d6bd607715f334cda90e01967bb0c02dee09be
Branch: refs/heads/main
Updates:
Microsoft.DotNet.Arcade.Sdk: from 6.0.0-beta.21227.1 to 6.0.0-beta.21281.1

eng/Version.Details.xml

@@ -1,9 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Dependencies>
   <ToolsetDependencies>
-    <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="6.0.0-beta.21227.1">
+    <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="6.0.0-beta.21281.1">
       <Uri>https://github.com/dotnet/arcade</Uri>
-      <Sha>cca78ffe3eefdc217e43c2421f2f23355f16da2d</Sha>
+      <Sha>c7d6bd607715f334cda90e01967bb0c02dee09be</Sha>
     </Dependency>
     <Dependency Name="NuGet.Build.Tasks" Version="6.0.0-preview.1.66">
       <Uri>https://github.com/nuget/nuget.client</Uri>

eng/Versions.props

@@ -28,7 +28,7 @@
   <PropertyGroup>
     <!-- DotNetCliVersion MUST match the dotnet version in global.json.
          Otherwise, this version of dotnet will not be installed and the build will error out. -->
-    <DotNetCliVersion>6.0.100-preview.2.21155.3</DotNetCliVersion>
+    <DotNetCliVersion>6.0.100-preview.3.21202.5</DotNetCliVersion>
     <MicrosoftExtensionsDependencyModelVersion>6.0.0-preview.2.21154.6</MicrosoftExtensionsDependencyModelVersion>
     <MicrosoftNetCompilersToolsetVersion>3.9.0-2.20574.26</MicrosoftNetCompilersToolsetVersion>
     <NuGetBuildTasksVersion>6.0.0-preview.1.66</NuGetBuildTasksVersion>