[Backport release-25.11] workflows/merge-group: make check & build required (#464997)

    if: github.event_name != 'pull_request' && always()

    # Modify this list to add or remove jobs from required status checks.

    needs:

      - check

      - lint

      - eval

      - build

    runs-on: ubuntu-slim

    permissions:

      statuses: write