Update stale.yml

Author: AvdLee

.github/workflows/stale.yml

@@ -15,5 +15,6 @@ jobs:
         stale-issue-message: 'This issue is stale because it has been open for 30 days with no activity. Remove the Stale label or comment or this will be closed in 10 days.'
         stale-pr-label: 'Stale'
         stale-pr-message: 'This PR is stale because it has been open for 30 days with no activity. Remove the Stale label or comment or this will be closed in 10 days.'
+        exempt-issue-labels: 'bug,enhancement'
         days-before-stale: 30
         days-before-close: 10