Don't stale P1 issues (#3264)

Author: nkolev92

.github/workflows/stale-issues.yml

@@ -26,9 +26,9 @@ jobs:
           close-issue-message: 'This issue is closed. If you feel this issue has been closed in error, please submit a new comment on the issue, and we will review it.'
           stale-issue-label: 'stale'
           close-issue-label: 'auto-close'
-          exempt-issue-labels: 'exempt'
+          exempt-issue-labels: 'exempt,P1,doc-enhancement'
           remove-stale-when-updated: true
           days-before-close: 14
           days-before-issue-stale: 180
           days-before-pr-stale: -1
-          operations-per-run: 500
+          operations-per-run: 500