message: build: Change CI to use stable
  Was using nightly, but 1.39 is stable now.
diff: @@ -5,7 +5,7 @@ trigger:
  include: ['*']
  stages:
  - - template: azure/nightly-stages.yml@templates
  + - template: azure/stages.yml@templates
  parameters:
  # Turn off feature checking since this is a workspace
  check_all_features: false
  