Updated version of Workbench to the latest version

[sidkri]

Purpose

This is to reflect version 1.8.0 that was just published to the Azure Marketplace

Does this introduce a breaking

[ x ] Yes
[ ] No

Pull Request Type

What kind of change does this Pull Request

[ ] Bugfix
[ x ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Documentation content 
[] Other... Please describe:

How to Test

* This change can be validated in a test environment by pointing to this branch before completing the pull request.

What to Check

Verify that the following

• The correct version of Workbench is returned to the upgrade script

Other Information

None