A manual action to dry-run all schedules
Goal
Have a manual action which can trigger all schedules in dry-run and look for errors. It's very difficult to verify the output, but this will at least provide a way to catch errors like #870 (closed)
In order to verify the output, we need individual tests for each policies and it cannot be generic.
Old description
After having a Ruby expression implemented in https://gitlab.com/gitlab-org/gitlab-triage/merge_requests/45 it's likely that we might have bugs in the expression, which I did a few times during the development.
We need to test the expression, or more generally, if the rules match our expectation.
For now, we could at least bring the dry-run from at https://gitlab.com/gitlab-org/gitlab-triage here