chore: add stale exempt issue/pr labels

Author: gabrieljablonski

.github/workflows/stale.yml

@@ -29,3 +29,5 @@ jobs:
         stale-pr-message: 'This pull request is stale because it has not seen activity in 30 days. Remove the `stale` label or comment within 14 days, or it will be closed.'
         stale-issue-label: 'stale'
         stale-pr-label: 'stale'
+        exempt-issue-labels: 'help-wanted'
+        exempt-pr-labels: 'help-wanted'