[Ubuntu] Replace WebClient with Invoke-WebRequest (#12434)

Co-authored-by: baidarka <[email protected]>

Author: akilesh-amaran

images/ubuntu/scripts/helpers/Common.Helpers.psm1

@@ -129,7 +129,7 @@ function Invoke-DownloadWithRetry {
     for ($retries = 20; $retries -gt 0; $retries--) {
         try {
             $attemptStartTime = Get-Date
-            (New-Object System.Net.WebClient).DownloadFile($Url, $DestinationPath)
+            Invoke-WebRequest -Uri $Url -Outfile $DestinationPath
             $attemptSeconds = [math]::Round(($(Get-Date) - $attemptStartTime).TotalSeconds, 2)
             Write-Host "Package downloaded in $attemptSeconds seconds"
             break