chore(workflow::stale): add "breaking" to exempt

Author: hasezoey

.github/workflows/stale.yml

@@ -22,7 +22,7 @@ jobs:
           stale-issue-message: 'Marking Issue as stale, will be closed in 7 days if no more activity is seen'
           close-issue-message: 'Closing Issue because it is marked as stale'
           stale-issue-label: stale
-          exempt-issue-labels: help wanted,docs,enhancement,feature,dependencies,Distribution support,discussion,released on @beta,released on @master,keep
+          exempt-issue-labels: help wanted,docs,enhancement,feature,dependencies,Distribution support,discussion,released on @beta,released on @master,keep,breaking
           days-before-stale: 60
           days-before-close: 7
           remove-stale-when-updated: true