chore: use the new npm cache option when setting up node (#1157)

.github/workflows/ci.yml

@@ -47,17 +47,6 @@ jobs:
  - name: checkout code
  uses: actions/checkout@v2
 
- - name: Cache dependencies
- uses: actions/cache@v2
- with:
- path: |
- ~/.npm
- **/node_modules
- key: ${{runner.os}}-npm-${{hashFiles('**/package-lock.json')}}
- restore-keys: |
- ${{runner.os}}-npm-
- ${{runner.os}}-
-
  - name: read node version from .nvmrc
  run: echo ::set-output name=NVMRC::$(cat .nvmrc)
  shell: bash
@@ -76,9 +65,10 @@ jobs:
  if: ${{startsWith(matrix.os, 'ubuntu')}}
 
  - name: setup node
- uses: actions/setup-node@v1
+ uses: actions/setup-node@v2
  with:
  node-version: '${{steps.nvm.outputs.NVMRC}}'
+ cache: npm
 
  # turn off the default setup-node problem watchers...
  - run: echo "::remove-matcher owner=eslint-compact::"