Add frequent CI workflow to check if data is outdated

[Copilot]

Data downloaded on Fridays can become outdated before Tuesday's mt-sync-code-data.yml runs, with no workflow to bridge the gap on the other days.

Changes

• New workflow shared-overwrite/.github/workflows/mt-check-data-outdated.yml
  • Runs at 0 12 * * 1,3,4,6,7 (Mon/Wed/Thu/Sat/Sun @ noon UTC) — fills the days not covered by mt-download-data.yml (Fri) or mt-sync-code-data.yml (Tue)
  • Restricted to agency repos: ! endsWith(github.repository, '/mtransit-for-android') && ! contains(github.repository, '-bike-')
  • Runs agency-parser/check_data_outdated.sh; if exit code 1 (outdated), triggers mt-download-data.yml

- name: MT check if data is outdated & trigger download
  continue-on-error: true
  run: |
    if ./agency-parser/check_data_outdated.sh; then
      echo ">> Data is up-to-date.";
    else
      echo ">> Data is outdated. Triggering mt-download-data.yml workflow...";
      gh workflow run mt-download-data.yml
    fi
  env:
    GH_TOKEN: ${{ secrets.MT_PAT }}

Original prompt

---

This section details on the original issue you should resolve

<issue_title>Add frequent CI workflow at noon to check if data outdated.</issue_title>
<issue_description>Add a new CI workflow in shared-overwrite/.github/workflows to check if data is outdated that uses shared-opt-dir/agency-parser/check_data_outdated.sh like in shared-overwrite/.github/workflows/mt-download-data.yml to trigger gh workflow run mt-download-data.yml.

Workflow should run on 0 12 * * 1,3,4,6,7 cron to complement existing workflows.

Workflow should only run:
if: ${{ ! endsWith(github.repository, '/mtransit-for-android') && ! contains(github.repository, '-bike-') }}

Example:

• On March 20, 2026, a Friday, mt-download-data.yml was run and downloaded new data but current data was not outdated until March 23 but next mt-sync-code-data.yml is on March 24.</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Add frequent CI workflow at noon to check if data outdated. #622

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