If you deployed all the files for Form Wizard Pro 18.104.22.168, it should have deployed the file:
If that file exists the setup page will run it and it will update the Form Wizard feature version to 22.214.171.124
I would verify that the file exists in the package and in the installation. It does exist in my copy of the package. If it doe snot exist in yours I would download it again and double check.
However the file itself is empty, there were no database changes in that script, its only purpose was to increment the version for the new release which did have code changes.
Hope that helps,