Increase stalebot operations limit by 50%

We have to increase this until either it can handle 1000 issues in a single run, or we hit the GitHub API operations limit.

.github/workflows/manage-stale-issues-and-prs.yml

@@ -32,7 +32,7 @@ jobs:
           exempt-issue-labels: blocked,do-not-close,feature-gate,security
           exempt-pr-labels: blocked,do-not-close,feature-gate,security
           # No actual changes get made in debug-only mode, so we can raise the operations ceiling.
-          operations-per-run: ${{ github.event_name == 'pull_request' && 100 || 30}}
+          operations-per-run: ${{ github.event_name == 'pull_request' && 100 || 45}}
           stale-issue-label: stale
           stale-issue-message: "" # Leave no comment when marking as stale
           stale-pr-label: stale