Workflow file only triggers if it resides in the branch. If an old PR based on the mailu repo without CI.yml is tested, then the workflow run will not trigger. The merged commit on TESTING/STAGING branch does not contain the required CI.yml workflow file after all. In these cases simply run the workflow manually on the TESTING or STAGING branch,
Add label backlog to exempt labels. We will use label backlog to collect bugs/features that we want to consider for a future release. Thus we do not want to auto-close those issues.
With this, and the already activated github-app, the stale robot will
mark and subsequently close issues as specified in the config.
Currently we mark after 21 days, close after 7 more days, and ignore
issues with an assigned priority or milestone.