GitHub Action: execute lint and test on push for each pull request (PR) - easy to adapt for other npm/yarn scripts - works with Netlfiy and Vercel - just add the following file in the following directory `.github/workflows/checks.yml`

checks.yml

name: Checks
on: push
jobs:
  lint:
    name: Lint
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - run: npm install
      - run: npm run lint
  test:
    name: Test (jest)
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - run: npm install
      - run: npm run test

Link to article: https://harambasic.de/posts/adding-github-actions-for-testing-linting-to-all-my-repositories