chore(deps): update actions/setup-node action to v2 (#20)

Co-authored-by: Renovate Bot <[email protected]>

Author: renovate[bot]

Diff for: .github/workflows/test.yml

@@ -13,7 +13,7 @@ jobs:
       - name: checkout
         uses: actions/checkout@v2
       - name: setup Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v1
+        uses: actions/setup-node@v2
         with:
           node-version: ${{ matrix.node-version }}
       - name: Install