fix(github): exempt issues in a milestone

.github/stale.yml

@@ -2,6 +2,8 @@
 daysUntilStale: 30
 # Number of days of inactivity before a stale issue is closed
 daysUntilClose: 7
+# Ignore if in a milestone
+exemptMilestones: true
 # Issues with these labels will never be considered stale
 exemptLabels:
   - documents
@@ -13,9 +15,9 @@ exemptLabels:
 staleLabel: stale
 # Comment to post when marking an issue as stale. Set to `false` to disable
 markComment: >
-  This issue is being marked as stale because it has not had any recent activity. 
-  It will be closed if no further activity occurs. 
-  If this is still an issue in the latest release of Dracut and you would like to keep it open please comment on this issue within the next 7 days. 
+  This issue is being marked as stale because it has not had any recent activity.
+  It will be closed if no further activity occurs.
+  If this is still an issue in the latest release of Dracut and you would like to keep it open please comment on this issue within the next 7 days.
   Thank you for your contributions.
 # Comment to post when closing a stale issue. Set to `false` to disable
 closeComment: false