Move git tag step into publish job
Move git tag step into publish job

[#130675061](https://www.pivotaltracker.com/story/show/130675061)

Signed-off-by: Zachary Auerbach <84a275e6a279738f2aa78daf0002615dee69cc28@pivotal.io>

barthy1/bosh,barthy1/bosh,barthy1/bosh,barthy1/bosh