Change Dependabot schedule from daily to monthly (#162)
Change Dependabot schedule from daily to monthly (#162)

Since this project is less actively developed/deployed than some of our others,
so dependency update PRs are more of a distraction compared to those on which
we're working on on a daily basis anyway.

In addition, the new GitHub auto-merge functionality combined with Dependabot's
automatic rebasing, makes conflicting PRs less annoying to deal with, so spacing
out the PRs by using the daily schedule is no longer necessary.
heroku/heroku.jar