refactor: do not use templates for helm releases

[mglotov]

Prerequisites

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• I am running the latest version
• I checked the documentation and found no answer
• I checked to make sure that this issue has not already been filed

Expected Behavior

Might it'd be better not to have templates and render values in locals

locals {
 release_values << <<VALUES
rbac:
  create: true
  serviceAccount:
    annotations:
      eks.amazonaws.com/role-arn: ${module.aws_iam_autoscaler.role_arn}
 VALUES
}

Current Behavior

There are lots of templates are used for helm releases. Most of them have only several strings.