Update stale.yml (#5441)

Author: jermainewang

.github/workflows/stale.yml

@@ -28,5 +28,5 @@ jobs:
         stale-issue-message: 'This issue has been automatically marked as stale due to lack of activity. It will be closed if no further activity occurs. Thank you'
         close-issue-message: 'This issue is closed due to lack of activity. Feel free to reopen it if you still have questions.'
         stale-issue-label: 'stale-issue'
-        exempt-issue-labels: 'bug:confirmed,feature request,help wanted,RFC,Work Item'
+        exempt-issue-labels: 'bug:confirmed,feature request,help wanted,Work Item'
         exempt-all-issue-milestones: true