event types:
WatchEvent PullRequestEvent CommitCommentEvent PullRequestReviewCommentEvent ForkEvent GollumEvent PublicEvent ReleaseEvent IssueCommentEvent PushEvent CreateEvent DeleteEvent IssuesEvent MemberEvent
workflow:
get top 10K most popular repos from "today" github_daily_top_repos load all events from those repos into snapshot table github_top_repo_daily_events load top repos