Initial Product Analytics moderation job (frevs)

Bug: T362612

An initial Python job repo package for moderation related MariaDB-based jobs.

It currently has flagged revisions pending hourly script only. After this successful runs, I will add recentchanges and future Automoderator related jobs to this.

Job repo: https://gitlab.wikimedia.org/repos/product-analytics/moderation-mariadb-jobs

SQL: https://gitlab.wikimedia.org/repos/product-analytics/data-pipelines/-/blob/main/moderation/generate_moderation_flagged_revisions_pending_hourly.sql?ref_type=heads