https://medium.com/finatext/github-actions-651cde99a2f8 をシンプルにしたい

main.yml

name: main

on:
  pull_request:

jobs:
  lint:
    runs-on: ubuntu-latest
    
    steps:
      - name: checkout
        uses: actions/checkout@v2.3.2
      - name: lint
        run: ktlint

  unit-test:
    runs-on: ubuntu-latest
    needs: [lint]

    steps:
      - name: checkout
        uses: actions/checkout@v2.3.2
      - name: unit test
        run: test

  scenario-test:
    runs-on: ubuntu-latest
    needs: [lint]
    if: !contains(github.event.pull_request.labels.*.name, 'WIP')

    steps:
      - name: checkout
        uses: actions/checkout@v2.3.2
      - name: scenario test
        run: scenario_test