Add ability to skip smoke-tests to update-releases
Add ability to skip smoke-tests to update-releases

[#167113569](https://www.pivotaltracker.com/story/show/167113569)

Co-authored-by: Dave Walter <00834c187f77910918b70534e2fb1dd066a04d4b@pivotal.io>

cloudfoundry/cf-deployment,cloudfoundry/cf-deployment