Disable CI/CD in gitlab using helm charts

Following this document , I was able to disable CICD. https://docs.gitlab.com/ee/ci/enable_or_disable_ci.html

## Default project features settings
default_projects_features:
  issues: true
  merge_requests: true
  wiki: true
  snippets: false
  builds: false

By setting builds to false in helm chart we can disable CICD.

Two things to note:

• Disabling GitLab CI/CD, will affect only newly-created projects. Projects that had it enabled prior to this modification, will work as before.
• Even if you disable GitLab CI/CD, users will still be able to enable it in the project’s settings.