Update dependencies from https://github.com/dotnet/arcade build 20210…

…817.1

Microsoft.DotNet.XUnitExtensions , Microsoft.DotNet.VersionTools.Tasks , Microsoft.DotNet.Build.Tasks.Workloads , Microsoft.DotNet.Build.Tasks.TargetFramework.Sdk , Microsoft.DotNet.Build.Tasks.Packaging , Microsoft.DotNet.Build.Tasks.Installers , Microsoft.DotNet.Build.Tasks.Feed , Microsoft.DotNet.Build.Tasks.Archives , Microsoft.DotNet.Arcade.Sdk , Microsoft.DotNet.ApiCompat , Microsoft.DotNet.CodeAnalysis , Microsoft.DotNet.XUnitConsoleRunner , Microsoft.DotNet.GenFacades , Microsoft.DotNet.GenAPI , Microsoft.DotNet.RemoteExecutor , Microsoft.DotNet.PackageTesting , Microsoft.DotNet.Helix.Sdk , Microsoft.DotNet.SharedFramework.Sdk
 From Version 6.0.0-beta.21413.4 -> To Version 6.0.0-beta.21417.1

eng/common/templates/job/source-index-stage1.yml

@@ -35,15 +35,20 @@ jobs:
       packageType: sdk
       version: 3.1.x
 
-  - script: ${{ parameters.sourceIndexBuildCommand }}
-    displayName: Build Repository
+  - task: UseDotNet@2
+    displayName: Use .NET Core sdk
+    inputs:
+      useGlobalJson: true
 
   - script: |
       dotnet tool install BinLogToSln --version $(SourceIndexPackageVersion) --add-source $(SourceIndexPackageSource) --tool-path .source-index/tools
       dotnet tool install UploadIndexStage1 --version $(SourceIndexPackageVersion) --add-source $(SourceIndexPackageSource) --tool-path .source-index/tools
       echo ##vso[task.prependpath]$(Build.SourcesDirectory)/.source-index/tools
     displayName: Download Tools
 
+  - script: ${{ parameters.sourceIndexBuildCommand }}
+    displayName: Build Repository
+
   - script: BinLogToSln -i $(BinlogPath) -r $(Build.SourcesDirectory) -n $(Build.Repository.Name) -o .source-index/stage1output
     displayName: Process Binlog into indexable sln
     env: