fr_pending_hourly

Bug: T362615

The MR adds two file

• Table creation: create_fr_pending_hourly_table.hql (tested)
• Hourly calculation query: calculate_fr_pending_hourly.sql
  • This is slightly different from the recommended testing, as this will be run using MySQL
  • Deletion / insertion will be part of the DAG script.
  • Link to the DAG script (being tested): https://gitlab.wikimedia.org/kcvelaga/airflow-dags/-/blob/frevs_pending/analytics_product/dags/flagged_revisions/fr_pending_hourly.py?ref_type=heads
• I have tested the query, and the results are available at kcvelaga.fr_pending_hourly

Note: I closed the previous MR as due to schema changes lately.