Add aggregated metrics for container registry writes
In this issue, we want to add two new aggregated metrics:
writes_monthly
writes_weekly
These metrics will aggregate all write operations made by both users and deploy tokens.
The RedisHLL metrics, which we have used previously in Container Registry metrics, is now deprecated. So when adding new metrics, it is advised to use the new Gitlab Internal Events Tracking. Here is a guide: https://docs.gitlab.com/ee/development/internal_analytics/internal_event_instrumentation/migration.html#migrating-from-tracking-with-redishll