Update stale.yml

Author: mar10

.github/stale.yml

@@ -14,6 +14,7 @@ onlyLabels: []
 exemptLabels:
   - pinned
   - security
+  - bug
   - "[Status] Maybe Later"
 
 # Set to true to ignore issues in a project (defaults to false)
@@ -26,7 +27,8 @@ exemptMilestones: false
 exemptAssignees: false
 
 # Label to use when marking as stale
-staleLabel: wontfix
+staleLabel: stale
+# staleLabel: wontfix
 
 # Comment to post when marking as stale. Set to `false` to disable
 markComment: >