when use actions for using yarn

actions.yaml

name: node_actions_example

on: push

jobs:
  job_using_node:
    name: Using actions node
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - uses: actions/setup-node@v2
        with:
          node-version: '16'
          cache: 'yarn'
      - run: yarn
      - run: yarn lint
      - run: yarn build