Merge pull request #4661 from github/300-stale-ops-per-run

Increase stale operations per run to 300

Author: dooleydevin

.github/workflows/stale.yml

@@ -29,3 +29,4 @@ jobs:
           exempt-pr-labels: 'keep'
           close-issue-reason: not_planned
           ascending: true # Sort PRs by last updated date in ascending order
+          operations-per-run: 300