Publish 'devel' releases of the chart from master

What does this MR do?

This MR publishes Helm non-production Helm charts to alternate channels:

• (existing behavior) tagged releases get published to stable channel using version from Chart.yaml
• (existing behavior) autodeploy releases get published into autodeploy channel
• intermediate master builds get published to devel channel using combination of version from Chart.yaml and pipelineID to form "devel version": <version>-<pipelineID>. Since according to SemVer that is considered "pre-release" of <version> subsequent attempt to install corresponding release from stable branch will be considered an "upgrade"

Pre-requisites

It has a requirement of enabled need helm chart repo enabled in settings.

Related issues

• Relates to #2285
• Closes #2780 (closed)
• Relates to #2939

Checklist

See Definition of done.

For anything in this list which will not be completed, please provide a reason in the MR discussion.

Required

• Merge Request Title and Description are up to date, accurate, and descriptive
• MR targeting the appropriate branch
• MR has a green pipeline on GitLab.com

Expected (please provide an explanation if not completing)

• Test plan indicating conditions for success has been posted and passes

• Documentation created/updated

• Tests added

  • tests for chart are already in place

• Integration tests added to GitLab QA

  • tests for chart are already in place

• Equivalent MR/issue for omnibus-gitlab opened

  • N/A