text: 
  -- +goose Up
  -- SQL in section 'Up' is executed when this migration is applied
  ALTER TABLE user_character_images ADD voice_type INT NOT NULL DEFAULT 1 COMMENT '音声状態' AFTER priority;
  
  -- +goose Down
  -- SQL section 'Down' is executed when this migration is rolled back
  ALTER TABLE user_character_images DROP COLUMN voice_type;
  