Use Helm 3 instead of 2.16.9 on lint/release jobs
What does this MR do?
Use Helm 3 (3.4.1) instead of 2.16.9 on lint
/release development
/release beta
jobs.
This does not affect release stable
/integration test
jobs.
Why was this MR needed?
Helm 2 was deprecated in &1 (closed).
What's the best way to test this MR?
Run the pipelines.
What are the relevant issue numbers?
Closes #364 (closed)