Update dependencies from https://github.com/dotnet/arcade build 20211019.3 (#6973)

This pull request updates the following dependencies

## From https://github.com/dotnet/arcade
- **Subscription**: 93d865d2-823f-4e4d-e0b6-08d91b0a84f2
- **Build**: 20211019.3
- **Date Produced**: October 19, 2021 5:29:27 PM UTC
- **Commit**: 85f3aa16d8797b5020f1fda11df1a958feb5f8df
- **Branch**: refs/heads/release/6.0

- **Updates**:
  - **Microsoft.DotNet.XUnitExtensions**: [from 6.0.0-beta.21515.3 to 6.0.0-beta.21519.3][1]
  - **Microsoft.DotNet.Arcade.Sdk**: [from 6.0.0-beta.21515.3 to 6.0.0-beta.21519.3][1]

[1]: dotnet/arcade@f389f73...85f3aa1

Author: dotnet-maestro[bot]

eng/Version.Details.xml

@@ -5,9 +5,9 @@
       <Uri>https://github.com/dotnet/roslyn-analyzers</Uri>
       <Sha />
     </Dependency>
-    <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="6.0.0-beta.21515.3">
+    <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="6.0.0-beta.21519.3">
       <Uri>https://github.com/dotnet/arcade</Uri>
-      <Sha>f389f732d8cdca8ee1e38a534cf10c8c3182ba39</Sha>
+      <Sha>85f3aa16d8797b5020f1fda11df1a958feb5f8df</Sha>
       <SourceBuild RepoName="arcade" ManagedOnly="true" />
     </Dependency>
     <Dependency Name="NuGet.Build.Tasks" Version="6.0.0-rc.262">
@@ -18,9 +18,9 @@
       <Uri>https://github.com/dotnet/roslyn</Uri>
       <Sha>95b7a0198f8c805b367f17e4639020ec21c16705</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.DotNet.XUnitExtensions" Version="6.0.0-beta.21515.3">
+    <Dependency Name="Microsoft.DotNet.XUnitExtensions" Version="6.0.0-beta.21519.3">
       <Uri>https://github.com/dotnet/arcade</Uri>
-      <Sha>f389f732d8cdca8ee1e38a534cf10c8c3182ba39</Sha>
+      <Sha>85f3aa16d8797b5020f1fda11df1a958feb5f8df</Sha>
     </Dependency>
   </ToolsetDependencies>
 </Dependencies>

eng/Versions.props

@@ -32,7 +32,7 @@
     <!-- 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>$([System.Text.RegularExpressions.Regex]::Match($([System.IO.File]::ReadAllText('$(MSBuildThisFileDirectory)..\global.json')), '"dotnet": "([^"]*)"').Groups.get_Item(1))</DotNetCliVersion>
-    <MicrosoftDotNetXUnitExtensionsVersion>6.0.0-beta.21515.3</MicrosoftDotNetXUnitExtensionsVersion>
+    <MicrosoftDotNetXUnitExtensionsVersion>6.0.0-beta.21519.3</MicrosoftDotNetXUnitExtensionsVersion>
     <MicrosoftCodeAnalysisBannedApiAnalyzersVersion>3.3.2</MicrosoftCodeAnalysisBannedApiAnalyzersVersion>
     <MicrosoftExtensionsDependencyModelVersion>6.0.0-preview.2.21154.6</MicrosoftExtensionsDependencyModelVersion>
     <MicrosoftNetCompilersToolsetVersion>4.0.0-6.21515.3</MicrosoftNetCompilersToolsetVersion>

eng/common/templates/post-build/post-build.yml

@@ -15,6 +15,6 @@
   },
   "msbuild-sdks": {
     "Microsoft.Build.CentralPackageVersions": "2.0.1",
-    "Microsoft.DotNet.Arcade.Sdk": "6.0.0-beta.21515.3"
+    "Microsoft.DotNet.Arcade.Sdk": "6.0.0-beta.21519.3"
   }
 }