もう一個bigintへのマイグレーションが来てたよw https://github.com/tootsuite/mastodon/pull/5070
github.comForgotten in #5039, change statuses_tags tag_id to bigint by Gargron · Pull Request #5070 · tootsuite/mastodonmastodon - Your self-hosted, globally interconnected microblogging community