1:
  project_id: 1
  name: タスク1
  status: "todo"
  price: 100

2:
  project_id: 1
  name: タスク2
  status: "todo"
  price: 200

3:
  project_id: 1
  name: タスク3
  status: "doing"
  price: 200

4:
  project_id: 1
  name: タスク4
  status: "doing"
  price: 300

5:
  project_id: 1
  name: タスク5
  status: "done"
  price: 400

6:
  project_id: 2
  name: タスク6
  status: "todo"