message: use yarn in action
diff: @@ -9,13 +9,13 @@ jobs:
  - uses: actions/checkout@v1
  - name: Install dependencies
  - run: npm ci
  + run: yarn
  - name: Lint
  - run: npm run lint
  + run: yarn run lint
  - name: Test
  - run: npm test
  + run: yarn test
  - name: Publish to the npm registry
  uses: "primer/publish@v2.0.0"
  