This commit extracts `kubectl`, `helm` and `codeclimate` versions as CI
variables.
`kubectl` changes from latest stable version to `1.8.6`, the other two are just
extracted in order to be easily updated; now we can also test tool upgrades
overriding CI secret variables.
New auto-deploy helm chart has new names in order to support Auto Monitoring.
Works with, but does not require charts/charts.gitlab.io!66
See gitlab-ce#38028
