Update dependencies from https://github.com/dotnet/arcade build 20210818.12 (#11594)

[main] Update dependencies from dotnet/arcade
- Coherency Updates:
  - Microsoft.SourceLink.GitHub: from 1.1.0-beta-21416-05 to 1.1.0-beta-21417-01 (parent: Microsoft.DotNet.Arcade.Sdk)
  - Microsoft.DotNet.XliffTasks: from 1.0.0-beta.21414.1 to 1.0.0-beta.21417.1 (parent: Microsoft.DotNet.Arcade.Sdk)

eng/common/tools.ps1

@@ -154,6 +154,9 @@ function InitializeDotNetCli([bool]$install, [bool]$createSdkLocationFile) {
     return $global:_DotNetInstallDir
   }
 
+  # In case of network error, try to log the current IP for reference
+  Try-LogClientIpAddress
+
   # Don't resolve runtime, shared framework, or SDK from other locations to ensure build determinism
   $env:DOTNET_MULTILEVEL_LOOKUP=0
 
@@ -872,3 +875,21 @@ if (!$disableConfigureToolsetImport) {
     }
   }
 }
+
+function Try-LogClientIpAddress()
+{
+    Write-Host "Attempting to log this client's IP for Azure Package feed telemetry purposes"
+    try
+    {
+        $result = Invoke-WebRequest -Uri "http://co1.msedge.net/fdv2/diagnostics.aspx" -UseBasicParsing
+        $lines = $result.Content.Split([Environment]::NewLine) 
+        $socketIp = $lines | Select-String -Pattern "^Socket IP:.*"
+        Write-Host $socketIp
+        $clientIp = $lines | Select-String -Pattern "^Client IP:.*"
+        Write-Host $clientIp
+    }
+    catch
+    {
+        Write-Host "Unable to get this machine's effective IP address for logging: $_"
+    }
+}