ci: schedule bot PR monitoring

[fredbi]

Summary

Adds a daily-scheduled workflow that calls the shared monitor-bot-pr workflow from go-openapi/ci-workflows (v0.3.0, commit ff87261).

The shared workflow detects bot PRs (dependabot or organization bot) where auto-merge is enabled but the branch fell behind master, and unblocks them:

• dependabot PRs → a @dependabot rebase comment;
• organization bot PRs → gh pr update-branch --rebase.

Runs daily at 06:18 UTC and on workflow_dispatch. PRs from dependency groups that are not configured for auto-merge are excluded automatically (the autoMergeRequest != null filter).

Test plan

• Trigger the workflow manually via workflow_dispatch once merged and observe the notice annotations (No stalled ... PRs found or Requesting dependabot rebase for ...).
• Wait for a real stalled PR (BEHIND master, idle ≥ 1 day, auto-merge on) and confirm the next scheduled run unblocks it.

🤖 Generated with Claude Code

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.43%. Comparing base (2b3da81) to head (0e213ca).
⚠️ Report is 4 commits behind head on master.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##           master      #98   +/-   ##
=======================================
  Coverage   97.43%   97.43%           
=======================================
  Files           2        2           
  Lines          78       78           
=======================================
  Hits           76       76           
  Misses          1        1           
  Partials        1        1           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.