updated stale file

Author: wolph

.github/workflows/stale.yml

@@ -12,9 +12,4 @@ jobs:
       - uses: actions/stale@v8
         with:
           days-before-stale: 30
-          exempt-issue-labels: |
-            in-progress
-            help-wanted
-            pinned
-            security
-            enhancement
+          exempt-issue-labels: in-progress,help-wanted,pinned,security,enhancement