Use of 'winrm quickconfig' can sometimes cause the Packer build to fail
shortly after the WinRM connection is established.
* When executed the 'winrm quickconfig -q' command configures the
firewall to allow management messages to be sent over HTTP (port 5985)
* This undoes the previous command in the script that configured the
firewall to prevent this access.
* The upshot is that the system is configured and ready to accept WinRM
connections earlier than intended.
* If Packer establishes its WinRM connection immediately after execution
of the 'winrm quickconfig -q' command, the later commands within the
script that restart the WinRM service cause the established
connection, and consequently, the overall build to fail.