Auto-update pipeline: Migrate rubgems blob name
Auto-update pipeline: Migrate rubgems blob name

[#141934053](https://www.pivotaltracker.com/story/show/141934053)

cloudfoundry-incubator/bosh-openstack-cpi-release,cloudfoundry-incubator/bosh-openstack-cpi-release,cloudfoundry-incubator/bosh-openstack-cpi-release