- Use AUTOMATION_TOKEN to get around "resource not available by
integration". It looks like jobs triggered from community pull
requests do not have permissions to write to our project.
- Tolerate the "project already has the associated issue" error for
staff as non-fatal.
- Do not add draft PRs to the review board
- Do not enforce that the base branch must be "trunk"
- Refuse PRs made with our "trunk" as the head
- Improve staff check to avoid hardcoding
- Improve pattern matching when suggesting to link to an issue
- Use the stock GITHUB_TOKEN
