Fix error "NoProcessFoundForGivenName" when running Disable-InternetExplorerESC

The error happens because we try to stop the Explorer process which may not running,
so let's check first if the process is running.

images.CI/build-image.ps1

@@ -36,6 +36,9 @@ $SensitiveData = @(
     ':  ->'
 )
 
+Write-Host "Show Packer Version"
+packer --version
+
 Write-Host "Build $Image VM"
 packer build    -var "capture_name_prefix=$ResourcesNamePrefix" `
                 -var "client_id=$ClientId" `