message: deploy workflow needs to yarn install
  This was relying on the cache instead, so it gets out of date dependencies.
diff: @@ -25,6 +25,8 @@ jobs:
  key: ${{ runner.os }}-eslint
  - name: Checkout
  uses: actions/checkout@v1
  + - name: yarn install
  + run: yarn install
  - name: Extract branch name
  shell: bash
  run: echo "##[set-output name=branch;]$(echo ${GITHUB_REF#refs/heads/})"
  