ci: use cache built-in to actions/setup-node

Author: malept

.github/workflows/ci.yml

@@ -24,15 +24,7 @@ jobs:
         uses: actions/[email protected]
         with:
           node-version: ${{ matrix.node-version }}
-      - name: Get yarn cache
-        id: yarn-cache
-        run: echo "::set-output name=dir::$(yarn cache dir)"
-      - uses: actions/[email protected]
-        with:
-          path: ${{ steps.yarn-cache.outputs.dir }}
-          key: ${{ runner.os }}-yarn-${{ hashFiles('**/package.json') }}
-          restore-keys: |
-            ${{ runner.os }}-yarn-
+          cache: yarn
       - name: Install
         run: yarn
       - name: Lint

.github/workflows/docs.yml

@@ -17,6 +17,7 @@ jobs:
       - uses: actions/[email protected]
         with:
           node-version: 14.x
+          cache: yarn
       - run: yarn
       - run: yarn docs
       - uses: docker://malept/gha-gh-pages:1.3.0