adapt helm charts to new workflow

3 jobs for master in 2 minutes and 42 seconds (queued for 1 second)
Name Stage Failure
test-chart Test
$ helm lint helm-charts/
==> Linting helm-charts/
[INFO] Chart.yaml: icon is recommended
[ERROR] templates/deployment.yaml: unable to parse YAML: error converting YAML to JSON: yaml: line 29: mapping values are not allowed in this context

Error: 1 chart(s) linted, 1 chart(s) failed
Running after_script
Uploading artifacts for failed job
ERROR: Job failed: exit code 1