backlog category delete
backlog category delete <id> [flags]<id> <int>- カテゴリ ID
-p,--project <string>- プロジェクトキー(env:
BACKLOG_PROJECT) --confirm- 確認プロンプトをスキップ
backlog category delete 12345 --project PROJbacklog category delete 12345 --project PROJ --confirm