Update stalebot to close stale PRs (#389)

.github/workflows/stale.yaml

@@ -1,5 +1,6 @@
 name: StaleBot
 on:
+  workflow_dispatch:
   schedule:
     - cron: '0 12 * * *'
 jobs:
@@ -15,12 +16,14 @@ jobs:
       - uses: actions/[email protected]
         with:
           repo-token: ${{ secrets.GITHUB_TOKEN }}
-          stale-issue-message: 'Labeled for closure due to inactivity in 10 days.'
-          exempt-issue-labels: 'bug,chore,roadmap,help-wanted,burning,feature,documentation,operational-excellence,good-first-issue'
+          stale-issue-message: 'This issue has been inactive for 14 days. StaleBot will close this stale issue after 14 more days of inactivity.'
+          exempt-issue-labels: 'bug,chore,feature,documentation,testing,operational-excellence,automation,roadmap'
           stale-issue-label: 'lifecycle/stale'
           close-issue-label: 'lifecycle/closed'
-          remove-stale-when-updated: true
-          days-before-stale: 20
-          days-before-close: 10
-          operations-per-run: 300
-          only-pr-labels: 'close-pr-if-stale' # Because we don't want the bot to close PRs for now.
+          stale-pr-message: 'This PR has been inactive for 14 days. StaleBot will close this stale PR after 14 more days of inactivity.'
+          exempt-pr-labels: 'blocked,needs-design'
+          stale-pr-label: 'lifecycle/stale'
+          close-pr-label: 'lifecycle/closed'
+          days-before-stale: 14
+          days-before-close: 14
+          operations-per-run: 300