Support `due` with time values
Due date would be a very powerful addition to the language. It would allow the user to anticipate things before they wind up as missed SLO or worse.
Example query: Plan issues that will slip their due date in less than 14 days
group = "gitlab-org" and label = ("devops::plan", "severity::2") and due < 14d
Due date filtering is not supported in GraphQL so there are two steps to implementation here.
- Support dueAfter and dueBefore in GraphQL
- Add due date to the language