Increase days until stale to 120
This gives us a little over a full release to work on issues.
# Configuration for probot-stale - https://github.com/probot/stale
# Number of days of inactivity before an Issue becomes stale (pull request is overridden later)
-daysUntilStale: 60
+daysUntilStale: 120
# Number of days of inactivity before an Issue or Pull Request with the stale label is closed.
# Set to false to disable. If disabled, issues still need to be closed manually, but will remain marked as stale.
