github: add stale issue close time
Adding the numbers of days in the info.
@@ -30,8 +30,8 @@ staleLabel: stale
# Comment to post when marking as stale. Set to `false` to disable
markComment: >
This issue has been automatically marked as stale because it has not had
- recent activity. It will be closed if no further activity occurs. Thank you
- for your contributions.
+ recent activity. It will be closed after 21 days if no further activity
+ occurs. Thank you for your contributions.
# Comment to post when removing the stale label.
# unmarkComment: >
