Add safe-to-evict annotation to stateless deployments
Closes #356 (closed)
This adds the safe-to-evict annotation to stateless deployments which are unicorn, sidekiq, task-runner, gitlab-shell
Registry ought to be backed by object storage but I am not sure that this will always be true for all use cases so i considered it out of the stateless set until an argument comes up against that
Edited by Ahmad Hassan