message: Use GHA checkout v2 for faster fetch
diff: @@ -14,7 +14,7 @@ jobs:
  steps:
  - name: checkout code
  - uses: actions/checkout@v1
  + uses: actions/checkout@v2
  - name: get yarn cache
  id: yarn-cache
  run: echo "::set-output name=dir::$(yarn cache dir)"
  