[Windows] Add retry to Install-VsixExtension (#6934)

images/win/scripts/ImageHelpers/InstallHelpers.ps1

@@ -274,7 +274,7 @@ function Install-VsixExtension
         [string] $FilePath,
         [Parameter(Mandatory = $true)]
         [string] $VSversion,
-        [int] $retries = 20,
+        [int] $Retries = 20,
         [switch] $InstallOnly
     )
 
@@ -285,6 +285,8 @@ function Install-VsixExtension
 
     $argumentList = ('/quiet', "`"$FilePath`"")
 
+    do
+    {
         Write-Host "Starting Install $Name..."
         $vsEdition = (Get-ToolsetContent).visualStudio.edition
         try
@@ -322,8 +324,15 @@ function Install-VsixExtension
         else
         {
             Write-Host "Unsuccessful exit code returned by the installation process: $exitCode."
-        exit 1
+            $Retries--
+            if ($Retries -eq 0) {
+                Write-Host "The $Name couldn't be installed after 20 attempts."
+            }else {
+                Write-Host "Waiting 10 seconds before retrying. Retries left: $Retries"
+                Start-Sleep -Seconds 10
             }
+        }
+    } until ($exitCode -eq 0 -or $exitCode -eq 1001 -or $Retries -eq 0 )
 
     #Cleanup downloaded installation files
     if (-not $InstallOnly)