message: chore:  downgrade yarn on windows on azure
  See
diff: @@ -17,6 +17,7 @@ jobs:
  git config --global core.autocrlf false
  git config --global core.symlinks true
  displayName: 'Preserve LF endings and symbolic links on check out'
  + - script: npm install -g yarn@1.9.4
  - template: .azure-pipelines-steps.yml
  - job: macOS
  