Increase operations-per-run in stale-pr-and-issues.yml to 90 so more issues and PRs get processed (#376)

Author: mcbarton

.github/workflows/stale-pr-and-issues.yml

@@ -24,4 +24,5 @@ jobs:
           stale-pr-message: "This PR is stale because it has been open for 90 days with no activity."
           close-pr-message: "This PR was closed because it has been inactive for 14 days since being marked as stale."
           exempt-pr-labels: 'awaiting-approval,work-in-progress'
+          operations-per-run: 90
           repo-token: ${{ secrets.GITHUB_TOKEN }}