Fix pipeline cache errors

Fixes errors (example) related to not being able to fetch the GitLab Chart from cache.

• Moves lint_code job to a new stage lint at the beginning of the pipeline
• Updates the chart versions to the latest patch versions (more flexible fix coming in !80 (merged))

Having the lint_code and pull_charts jobs in different stages prevents the caches overriding each other depending on which job finished first when they were in the same stage.