Raise operations limit for stalebot

.github/workflows/stale.yml

@@ -20,6 +20,7 @@ jobs:
           days-before-stale: 45
           days-before-close: 15
           exempt-issue-labels: 'status: accepted,status: blocked,status: needs milestone'
+          operations-per-run: 100
           remove-stale-when-updated: false
           stale-issue-label: 'pending closure'
           stale-issue-message: >