Improve increments of `project_daily_statistics`
## Problem In https://gitlab.com/gitlab-com/gl-infra/gitlab-dedicated/team/-/issues/2856#note_1561104319 we noticed that incrementing `project_daily_statistics.fetch_count` can be very slow. ## Idea As per conversation in https://gitlab.com/gitlab-com/gl-infra/gitlab-dedicated/team/-/issues/2856#note_1562023242 today we have `CounterAttribute` module we could possibly use to buffer updates using Redis and flushing them to the database periodically. You can see `CounterAttribute` being used with `project_statistics` table: https://gitlab.com/gitlab-org/gitlab/-/blob/64e8b2745649da2f23fdf3e997c97a4a318506f9/app/models/project_statistics.rb#L13-20
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